Netbooks still constitute a smaller niche than laptops and the exploding smart phone, or hand-held computer, category. But they are threatening to break into the mainstream in a big way, especially in an economic climate where a low price and fewer bells and whistles are suddenly more attractive.

They are much more portable than most standard laptops. They are easier to use on a plane or carry around town. And they are way cheaper, between $300 and $500, than the very lightest, thinnest standard laptops, which often top $1,000.

Compared with even an amazingly powerful pocket device, like the iPhone, the Google (GOOG) G1, or the forthcoming BlackBerry Storm, a netbook, at about twice the price, offers a much larger keyboard and screen. And they can run far more sophisticated software and perform a much wider variety of computing tasks.

But netbooks come with serious compromises. While they are great for light use on the go, their cramped screens and keyboards, and slow processors, make them much less potent and less comfortable to use than even a so-called ultraportable laptop. And, as small as they are, they can’t fit in a pocket like smart phones can, be as easily used as a still camera, or function as a cellphone.

Netbooks aren’t tablets. They look and act like regular clamshell-style laptops with keyboards and track pads, but are much smaller. Most current models have 8.9-inch screens, though some now sport 10-inch displays. Dell (DELL) is even planning soon to launch a netbook with a 12-inch screen for around $600, which will blur the line with traditional laptops, some of which can be bought for less with larger displays.

Compared with sleek, thin, but much costlier notebooks, such as the Apple (AAPL) MacBook Air or the Lenovo ThinkPad X300, the netbooks of today are stubbier and chunkier. But they take up much less room on an airline tray table. When the person in front of you reclines, you can happily keep using them, because their screens are so much smaller and extend upward so much less.

The early netbook models relied on the unfamiliar and somewhat geeky Linux operating system, and most still offer it as an option. But many now also can be purchased with Windows XP, with which consumers are far more experienced, and which can run many more well-known programs.

At the start of this year, most netbooks lacked hard disks, instead offering very limited storage via memory chips — often less storage than a $199 iPhone. They were pitched as limited devices mainly meant for using the Internet — thus the name “netbook” — and their makers assumed users mainly would use Web-based applications.

Now, many offer decent-size hard disks and include serious programs, such as Microsoft (MSFT) Office or Microsoft Works. But none offers a built-in DVD drive, which makes it hard to install some new software.

To offer readers a feel for today’s netbooks, I selected four representative models to test and review. I am not declaring these four as the best on the market, nor do I mean to slight makers like H-P, whose entries aren’t included in this review. The truth is, there are far more similarities than differences among competing netbooks that might make one model stand out from the others.

All four of the models I tested use Intel’s new low-power Atom processor. All have decent screen resolution — much better than the original Asus. But none can display a full Web page, or even most of a Web page, without scrolling. Each has three USB ports.

Three of the four have good battery life, but getting good power in most models means using a larger battery that adds weight and bulk.

All of my test models ran XP, not Linux, because I believe that’s the better choice for average consumers.

Here are minireviews of these four netbooks.

Acer Aspire One: The $349 blue Acer One weighs a little over two pounds with its standard battery, and has a bright, sharp 8.9-inch screen. It comes with a 120-gigabyte hard disk and 1 gigabyte of memory. It’s a little over an inch thick, and its footprint is much smaller than that of a standard sheet of paper.

As on all the other models, I tried a word processor, either Microsoft Word or Works, and several popular non-Microsoft programs: Adobe Reader, Apple’s iTunes and Mozilla’s Firefox browser. The Acer handled all of them well, though, as with all the other netbooks I tried, its speakers are mediocre.

The Acer’s small keyboard is very nicely done. Its keys are large enough, and separated and sculpted enough, to make typing comfortable and accurate, though I wouldn’t want to write a novel on it.

But the Acer has two big drawbacks. Its battery life is miserable. On my tough battery test, where I turn off all power-saving features, crank up the screen brightness, turn on the Wi-Fi, and play a continuous loop of music, it couldn’t even squeeze out two hours. In normal use, that might mean 2½ hours. To fix that problem, you can spend $50 more on a version with a double-size battery, at the cost of added weight and bulk. This costlier version also boosts the hard disk to 160 gigabytes.

The other problem, which can’t be fixed with any factory options, is that the Acer One has a terrible track pad. It’s too cramped vertically for comfortable use, and the buttons, which are mere slivers, are arranged on the sides instead of below the pad. Moving the cursor or selecting text is awkward and inaccurate.

Lesser problems are that the Acer includes only the older, slower, “G” flavor of Wi-Fi and a low-resolution Webcam.

The Dell Mini 9 has an 8.9-inch screen, is compact and has a big battery, but it lacks a hard disk and offers just 8 gigabytes of flash memory.

Dell Mini 9: Like the less costly Acer, the $399 Dell Mini has an 8.9-inch screen, but it’s a bit narrower horizontally. Its standard battery is larger, making it slightly heavier but still very light.

The Dell is a throwback to the older concept of netbooks. It lacks a hard disk and offers just 8 gigabytes of flash memory, plus 2 gigabytes of free online storage. It has just half a gigabyte of memory. For extra money, you can double the flash storage and memory.

Because of its bigger battery, and its lack of a power-sucking hard disk, the Dell beat the Acer handily in my battery test, getting just under three hours, which means that, in normal use, you would likely see four hours.

The Dell has the same wimpy Wi-Fi and Webcam as the Acer. But its track pad, while small, is much larger vertically and easier to use, with buttons where you expect to find them. It ran all my test software OK.

However, the Dell had by far the worst keyboard in my test group. Because of its compact width, the tab, arrow and other keys are squeezed to a ridiculously narrow size that impedes typing.

MSI Wind U100: This is a $399 machine (after a recent price cut) with a 10-inch screen, and comes from a Taiwan company better known in the U.S. for making computer components than entire computers. The model I tested, with a double-size battery, is $429. My test unit was white, weighed a tad over three pounds, and had 1 gigabyte of memory and a 160-gigabyte hard disk.

Despite the larger screen, the Wind still fits very well on a cramped airline tray, and it has a well-designed keyboard. It comes with a button that can slow down or speed up the processor to save battery life or add oomph. And there’s a function that can magnify portions of text.

It has a standard, decent Webcam and can use the newest “N” flavor of Wi-Fi. It ran all my test software just fine.

With my test model’s bigger battery, which protrudes from the bottom, the Wind did very well on my test at its standard processor speed, lasting three hours and 37 minutes. That suggests you could get four to five hours in normal use. Presumably, the standard model with the smaller battery would get half of that life, though you could stretch it by stepping down the processor speed.

Overall, I liked the MSI Wind a lot. My only real gripe is that the track pad is small and has only a single thin button, which performs a left or right click. This button is too small and sluggish for optimal use.

Asus Eee 1000H: Asus, another Taiwan company known as a component maker, is the king of netbooks. In fact, it has so many different, and frequently changing, netbook models that its product lineup can be a blur. The one I tested has a 10-inch screen and costs $475, making it the costliest netbook in this group. It’s also the heaviest, edging out my test Wind slightly.

Like the Wind, my Eee 1000H had a large battery that protruded from the bottom. It doesn’t come with a smaller battery. Also like the Wind, it has a standard Webcam, the faster “N” Wi-Fi, and a 160-gigabyte hard disk with 1 gigabyte of memory.

The keyboard on the 1000H was the best of this lot, with well-designed keys. It also had the roomiest and most functional track pad, though its buttons — integrated with a metal border around the track pad — took some getting used to.

The Asus, like the Wind, has the capability to tweak the speed of its processor. It also has a button that can change the screen resolution, though I found that the nonstandard resolutions looked distorted.

In my battery test, at its standard processor speed, the 1000H got three hours and 32 minutes, suggesting that in normal use it could deliver between four and five hours — more if you use the lower processor speed.

The Asus handled all my test software well. It comes with a greater variety of built-in programs than the others and offers 20 gigabytes of free online storage.

Bottom line: If you want a machine for light use, a light price and a light weight, a netbook is waiting and is worth a try. Just don’t expect the same experience as on a standard laptop or the convenience of a smart phone.

Find all of Walt Mossberg’s columns and videos online, free, at the All Things Digital Web site, walt.allthingsd.com. Email him at mossberg@wsj.com.

http://ptech.allthingsd.com/20081029/shopping-for-basics-and-saving-money-on-your-next-pc/ http://ptech.allthingsd.com/20081029/shopping-for-basics-and-saving-money-on-your-next-pc/#comments Thu, 30 Oct 2008 01:06:02 +0000 Walter S. Mossberg http://ptech.allthingsd.com/20081029/shopping-for-basics-and-saving-money-on-your-next-pc/ It’s time for my annual fall PC buyer’s guide. As always, this guide covers what average consumers doing typical tasks should look for in a desktop or laptop PC. That excludes heavy-duty gamers, corporate buyers, techies, or enthusiasts.

But this autumn, we find ourselves in a serious global economic slowdown. So I will focus this edition of the guide on how folks whose PC budgets have shrunk can still get something adequate for light use.

The guide below applies to both desktops and laptops, since the latter, at least in the consumer market, have achieved rough parity in performance and versatility, and are now more popular than desktops.

Windows vs. Mac: I consider the Mac operating system, Leopard, to be faster, easier and more stable than Windows XP or Windows Vista. It isn’t susceptible to the vast majority of malicious software that circulates on the Internet. And Macs also include Apple’s superb built-in iLife multimedia suite. Macs can even run Windows, though that costs extra.

However, Apple (AAPL) has consciously chosen not to offer machines in the bargain category. The cheapest Mac desktop, the minimalist Mac Mini, which doesn’t even include a monitor, speakers, keyboard or mouse, costs $650 for a model with a hard disk I consider adequate. The cheapest Mac laptop, the base model of the prior-generation MacBook (which Apple has retained in its lineup) is $999.

Both are good values, mainly due to the software. And Macs can save you money over time. But if the lowest upfront cost is your objective, you can pay hundreds less for desktops and laptops from Windows PC makers.

Which Windows: Windows Vista is too often slow, and incompatible with older peripherals, such as the printers you might not want to replace in this economic climate. It also can cost more because it demands beefier, and thus costlier, hardware to run well than does the older Windows XP.

Budget shoppers should look around for a computer that still runs XP, either one of the dwindling number of models built with XP in mind, or one that has been “downgraded” by the manufacturer to XP. This downgrade “feature” can cost $50 or more upfront, but permits you to buy a cheaper machine.

Dell Inspiron 530

For instance, I recently advised two of my budget-minded friends to buy a low-end Dell desktop, the Inspiron 530, at Micro Center, a small but very good national chain of computer superstores. This Dell (DELL) runs XP, and has a low-end Intel (INTC) processor. The store is currently selling a version with a 250-gigabyte hard disk — more than enough for an average user — and 2 gigabytes of memory, generous for XP, for just $400 after instant rebate. You can get a similar good deal directly from Dell.

These particular friends, one on each coast, each bought a nice LCD monitor for $100-$150, and were out of the store for very little money. Since they only wanted to run Microsoft (MSFT) Office, browse the Web, do email and manage photos, this machine met their needs.

Another option is a low-cost machine with the Home Basic version of Vista, which also tends to cost less and to require less-expensive hardware than the more-common Vista Home Premium. If my friends had wanted laptops, I could have steered them to a 15-inch Acer Aspire laptop at the same store. This machine runs Vista Basic, with 1 gigabyte of memory and a 120-gigabyte hard disk, and costs $380.

You can often buy an even less-costly computer if you opt for the Linux operating system, but I still don’t advise this for average non-techie users.

Memory: For XP, or a Mac, I suggest 2 gigabytes of memory, but you can get away with 1 gigabyte for light use. For Vista, I recommend 3 gigabytes, but 2 gigabytes will do on a tight budget. You can always add memory later.

Hard disk: On a laptop, 160 gigabytes is the minimum I usually suggest, but you can get by with 120 gigabytes and upgrade when economic times are better. On a desktop, 250 gigabytes is easily obtainable, but 160 gigabytes will do.

DVD drive: If you never record DVDs, you can save money by buying a cheaper combo drive, which plays both DVDs and CDs, but records only the latter.

Processor: Look for a dual-core processor, but to save money, don’t worry about the speed, model number, or brand.

Video: A separate, or “discrete,” video card is best, especially for Vista Home Premium, but budget shoppers should stick with lesser “integrated graphics.”

Other features: If your home lacks the fastest “n” version of Wi-Fi, spend less for a laptop with the older “g” version. If you don’t need to do video chats or recording, don’t pay for a built-in camera and microphone.

Netbooks: If you don’t mind a tiny screen, cramped keyboard and limited file storage, these popular new mini-laptops can save you money. Some sell for under $400, even equipped with Windows.

Remember, pay only for the computing capabilities you need.

Find all of Walt Mossberg’s columns and videos online, free, at the All Things Digital Web site, walt.allthingsd.com. Email him at mossberg@wsj.com.

]]> http://ptech.allthingsd.com/20081029/shopping-for-basics-and-saving-money-on-your-next-pc/feed/ 6 http://ptech.allthingsd.com/20081008/dell-remote-access-keeps-your-files-at-your-disposal/ http://ptech.allthingsd.com/20081008/dell-remote-access-keeps-your-files-at-your-disposal/#comments Thu, 09 Oct 2008 01:06:02 +0000 Walter S. Mossberg http://ptech.allthingsd.com/20081008/dell-remote-access-keeps-your-files-at-your-disposal/ Say you’re on the road and you need to look at a file that’s on your main computer back at your office or house. Or say you’re using a device with limited storage, like a smart phone or one of the tiny new “netbook” portable PCs, and you want access to a file that isn’t on the device at hand.

You might be able to get at the desired file if you have previously uploaded it to an online storage or photo-sharing service, or emailed it to yourself. But, in many cases, you could be stuck.

[ See post to watch video ]

Now Dell (DELL), the big computer maker, is aiming to solve that problem with a new service called Dell Remote Access. Despite the name, the service can be installed on any brand of Windows PC running Windows XP or Windows Vista to make its files remotely accessible, as long as it has a broadband connection. You can transfer, or stream, or share these files with others. You can even remotely use the host computer’s Web camera.

And some of the service’s functions also work even if your remote device is one of Apple’s (AAPL) Macintosh computers or iPhones, or a computer powered by the Linux operating system, like Dell’s own Mini netbook.

For basic functionality — making the files on one Windows PC remotely accessible from other devices — Dell Remote Access is free. If you want to use its advanced functions, like the ability to remotely control the host PC or to access other devices on your home network, it costs $9.95 a month, or $99 a year. This paid version of the service also includes the ability to share with others access to files or to devices on your network, such as stand-alone Web cameras.

You only need to install special software on the host PC whose files are to be remotely accessed. For basic file access, the remote devices require just a Web browser and a password to tap into the host computer. You can download the software, and get started with the service, at dellremoteaccess.com.

I’ve been testing Dell Remote Access for a few days, at home and on the road, and found that it works well, despite a few glitches and limitations. It’s not revolutionary — many other services and software programs do part or all of what it does, with varying degrees of technical difficulty and at varying fees — but Dell Remote Access combines a wide variety of functions into a fairly simple package. It will be available as a preinstalled option on Dell’s PCs later this year.

Dell also is hoping it will give a boost to sales of its Mini line of very small machines with limited internal storage for files.

For my tests, I installed Dell Remote Access on my home Dell desktop, an XPS One model running Windows Vista. The installation was easy and quick, except for one oddity: To use the new service, you have to uninstall a network diagnostic utility Dell installs on its machines, called Dell Network Assistant. Since I had little or no use for the utility, this was no big loss, but if you rely on it, this conflict could pose a problem.

Next, I used the Remote Access software to select folders I wanted to make remotely accessible. By default, the program assumes you want to share your documents, music and pictures folders, but I added some others. The software tests your network connection to let you know how well it’s likely to work.

I used a variety of remote devices to access this home Dell. These included a Sony (SNE) Vaio laptop running Vista, a Mac laptop and an Apple iPhone. I even tried accessing the Dell machine from a virtual Windows XP installation running on the Mac.

Some of these tests were conducted from within my home network and others were conducted from across the country.

In general, the tests went well. With the Sony laptop, and within Windows XP running on the Mac, I was able to view photos and slide shows, and stream music and videos, from the Dell in all locations. I opened Microsoft Office (MSFT) files and PDF files remotely and transferred files to the remote machines. I was even able to remotely control the Dell at decent speeds and use the Dell’s built-in camera.

The only annoyance was that every time you want to remotely control the host machine, you must download and install a small utility. You also have to leave on your home computer.

Dell’s system provides more limited functionality if your remote machine is a Mac using Apple’s operating system, or a Linux machine or a mobile phone. With these setups, you can only view, stream or transfer files only from the main host computer. You can’t do remote control or view cameras.

But these limited functions did work pretty well on the Mac and the iPhone, although in some cases I had to first download a song to the Mac before it would play, rather than simply streaming it directly from the Dell.

But Microsoft Word documents stored on the Dell opened right up on the Mac. It was particularly impressive to be able to view a document or photo stored on the Dell from an iPhone thousands of miles away.

Dell Remote Access is a worthy service that’s worth a try.

Find all of Walt Mossberg’s columns and videos online, free, at the All Things Digital Web site, walt.allthingsd.com. Email him at mossberg@wsj.com.

]]> http://ptech.allthingsd.com/20081008/dell-remote-access-keeps-your-files-at-your-disposal/feed/ 5 http://ptech.allthingsd.com/20080924/with-crossloop-users-can-get-help-from-techie-friend/ http://ptech.allthingsd.com/20080924/with-crossloop-users-can-get-help-from-techie-friend/#comments Thu, 25 Sep 2008 01:34:03 +0000 Walter S. Mossberg http://ptech.allthingsd.com/20080924/with-crossloop-users-can-get-help-from-techie-friend/ Trying to help a less-knowledgeable friend or family member solve computer problems can be very frustrating — especially if you can’t sit with him or her in front of the PC. It can be slow and awkward merely explaining the steps you’d like the other person to perform to diagnose and solve the problem.

The best approach is to control the distant computer remotely — with the owner’s consent — during the problem-solving session. That way, you can directly manipulate the machine while explaining what you’re doing over the phone.

There are a variety of services and software that allow such remote control. Tools for doing so are even preinstalled in obscure corners of the Windows and Macintosh operating systems. But many are too complicated for average users — even those with enough knowledge to help solve common problems. Others cost money, or require you to establish an account with a service, or are aimed mainly at folks seeking unattended access to their own remote computers.

This week, I tested a remote-control product designed specifically for collaborative help sessions solicited by the person seeking help. It is free, simple and can be used without setting up an account. And it also has an added dimension: If you have a problem and lack a tech-savvy friend or relative who can help, the company that makes the software maintains a directory of thousands of geeks who can help you, usually for a fee.

The product is called CrossLoop and can be downloaded at crossloop.com. It currently works only with Windows computers, but the company plans to release a Macintosh version in a few months.

To use CrossLoop, both you and the person you are helping must download and install the free program, a quick and simple process. When you run the program, you are invited to create a free account, which allows you to track your sessions and rate people who help you. But there’s a clearly marked Skip button that permits you to use the program with all of its features even without an account.

The software has a very clear, simple interface. It consists of two large tabbed sections: a grey one labeled Share for the person whose machine is to be operated remotely, and a green one labeled Access for the remote operator, called the “helper” by the company.

For security reasons, CrossLoop doesn’t allow its users to gain control of unattended machines. The process must begin with a person at the remote machine clicking the Share tab. That click generates an access code that is different for each remote session. The person seeking help then gives that code, usually over the phone, to the helper. The helper then clicks on the Access tab on his or her PC, and types in the code. The person on the other end must confirm that he or she wants to go ahead. Only then is the connection opened.

Once this process is complete, the helper sees a large window replicating the desktop of the remotely controlled machine, and can control that PC using his or her own mouse and keyboard. The helper can even transfer files to the remote machine.

On the other end, the person being helped can be passive or can share control of the computer. At any time, the person being helped can disconnect the session or limit the helper to just viewing the screen rather than controlling it.

The company says that it keeps no record of any of the sessions and that its software encrypts all communication between the two computers involved.

I tested CrossLoop in two scenarios. In one, I used it to help my friend Alan configure his new copy of Microsoft Office to save files in the older Office formats. The remote-control session worked fine, although Alan’s Internet connection was so slow that there were long delays in seeing changes occur on his screen.

In the second scenario, I hired one of CrossLoop’s listed consultants for $25 to clean up a Sony laptop I own that was running sluggishly. He spent over an hour deleting needless programs and removing others that were unnecessarily set to launch automatically. He carefully consulted me by phone to make sure he wasn’t cutting anything I needed or wanted. Again, I considered the session a success.

The only problem I saw in my tests was that when helping someone with a Vista machine, you may have to temporarily disable a security-warning feature called User Account Control, which pops up frequently and cuts off the connection.

CrossLoop eventually hopes to make money by charging the paid consultants in its network a fee. But it doesn’t guarantee that they are effective or honest, and merely relies on the ratings of others who have used them. It is theoretically possible for such a person to steal your data or plant malware on your computer.

Still, if you are helping a friend or relative with a PC problem, or are willing to trust a well-rated stranger to give you help, CrossLoop is a simple, effective way to do the job.

Find all of Walt Mossberg’s columns and videos online, free, at the All Things Digital Web site, walt.allthingsd.com. Email him at mossberg@wsj.com.

]]> http://ptech.allthingsd.com/20080924/with-crossloop-users-can-get-help-from-techie-friend/feed/ 4 http://ptech.allthingsd.com/20080820/microsoft-live-labs-creates-web-synth-for-3-d-photo-tour/ http://ptech.allthingsd.com/20080820/microsoft-live-labs-creates-web-synth-for-3-d-photo-tour/#comments Thu, 21 Aug 2008 01:02:03 +0000 Walter S. Mossberg http://ptech.allthingsd.com/20080820/microsoft-live-labs-creates-web-synth-for-3-d-photo-tour/ Microsoft is a little like the General Motors of technology. The software giant is, of course, much more successful, financially and in market share, than the troubled auto maker. But, as at GM (GM), Microsoft’s (MSFT) very size — over 90,000 employees — and its bureaucratic structure often make the company seem more stolid and less innovative than smaller, nimbler rivals like Google (GOOG) and Apple (AAPL).

This contrast has appeared sharper in recent years, as Microsoft’s Windows Vista operating system received a tepid critical response compared with Apple’s Leopard platform and as the company’s Live Web search service has slipped further behind Google’s. In addition, Microsoft’s cellphone software, Windows Mobile, looks old and creaky compared with Apple’s sleek iPhone and Google’s forthcoming Android mobile operating system.

[ See post to watch video ]

But innovation does exist at Microsoft’s sprawling Redmond, Wash., campus. For instance, last year’s daring and radical redesign of Microsoft Office has been a critical and commercial success.

Now, there’s a sort of guerrilla team inside Microsoft designed to churn out innovative products more often and more rapidly. Called Live Labs, the unit is a small operation that aims to turn technology theories into real, Web-based products relatively quickly. It has only about 125 employees, and even that modest number is broken up into smaller teams tackling specific projects.

This week, Microsoft Live Labs is releasing its first broad consumer Web service, called Photosynth. This service turns multiple photos of a scene or site — say, an art gallery or a building — into a 3-D scene you can virtually “walk” through on the Web.

Unlike a simple 2-D panorama, which many photo programs can create from several pictures, a Photosynth creation, called a “synth,” is a virtual 3-D environment. It gives you the feeling you are in the middle of a room looking around, or circumnavigating a building or object. You can travel through a scene both laterally and vertically, and zoom in to see detailed, higher-resolution views of objects inside the synth, such as paintings on a wall.

For instance, you don’t just see a long, flat picture of Stonehenge or the Grand Canal in Venice. You are made to feel you are there, moving through these places, looking up at the sky or down at the ground, and pausing to examine more closely a particular stone, boat or building.

Such 3-D walk-through images have been around for awhile; they are used on some real-estate Web sites, for example, to show houses virtually. But Photosynth allows anyone to create them using any standard digital camera, and even using pictures you already possess that weren’t created with Photosynth in mind. You could even use photos of the same site taken by several people. The software will analyze the pictures, figure out which ones overlap and in what order, and then turn those shots that match up into a 3-D synth.

Photosynth, based on technology Microsoft acquired in 2006, is entirely free, and it’s entirely based on the Web, at photosynth.net (where it will be launched at midnight EST Thursday). At that site you can view not only your own synths, but the synths created by every other Photosynth user.

I’ve been testing this service for about a week, and while it has its flaws, I believe that Photosynth offers a dramatic new way to use your photos and to share them with others.

Photosynth works within a Web browser, using a small plug-in you install. Currently, it works only in Windows, using Microsoft’s own Internet Explorer browser or its rival, Firefox. A Macintosh version is in the works, but for now, you can’t even view others’ synths in the Mac operating system.

When Photosynth works right, the results are wonderfully satisfying. But it takes some skill to get a set of photos the service can match up well, a quality Microsoft calls being “synthy.” Ideally, portions of each slice of a 3-D scene should show up in at least three photos, with 50% overlap between them. After you upload your pictures and Photosynth does its best to make them into a 3-D scene, the service assigns them a percentage number that indicates how synthy they were.

In my tests, I tried both collections of photos I already possessed and some I snapped with Photosynth in mind. My pictures of a piazza in Verona, Italy, were only 38% synthy, while ones I took of a hotel room specifically for Photosynth use were 73% synthy.

One gripe I had was that Photosynth doesn’t tell you how synthy your pictures are until after you have uploaded them and waited until the system merges them, a process that can take a long time over a slow Internet connection. It would be much better if the service could tell you in advance how synthy the pictures are. Another objection is that Photosynth has no privacy settings. All your synths are open to viewing by everyone who uses the service.

But, overall, Photosynth is an impressive new way to view and share photos, and an encouraging sign that innovation and creativity still live in Redmond.

Find all of Walt Mossberg’s columns and videos online, free, at the All Things Digital Web site, walt.allthingsd.com. Email him at mossberg@wsj.com.

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