On the outside, the Windows version of the XO laptop looks just like the Linux model. But simply booting up the device shows the Windows version bears little resemblance to the original One Laptop per Child device.
The Microsoft version offers Windows, and can run basically any software that can adjust itself to the mini-laptop's diminutive screen and modest processor.
Microsoft has managed to slim down the OS enough to boot up off a 2GB flash memory card and has written drivers for a number of the XO laptop's unique features, such as its scratch pad, game controller, and built-in camera.
The Linux model comes with an integrated suite of educational games, programming tools, and other software, all built around a kid-friendly OS shell known as Sugar. The Windows version of the XO doesn't have so much of that child-orientated personality — although a child-orientated programming tool known as Scratch did survive the Linux-to-Windows switch. But having Windows allows students to take advantage not only of Microsoft's dominant Office suite, but of all the educational software that has already been written for Windows.
However, it remains to be seen how much the software really matters to the OLPC's target users. In the end, it's how a school chooses to use the laptops that will really make the difference. Used properly, as part of a well-thought-out curriculum, both models offer tremendous opportunities for students to learn about technology and how to use technology to learn about many other areas.
Some countries have demanded that their students work on Linux, arguing open-source computers offer a chance for an independent software economy not tied to Microsoft. Many others, such as Peru, have demanded Windows, arguing that that's what their students need to get good jobs. Ultimately, OLPC hopes to offer a dual-boot option, though that is still being developed.
And while developing nations will now have their choice of operating systems, those in the US won't enjoy the same flexibility.
OLPC plans to reprise its 'Give One, Get One' programme this Christmas, which lets Americans pay for two machines: one of which they keep, and the other of which they donate. However, in all cases, the one they get will be of the Linux variety.
In part, that has to do with the fact that Microsoft offers a cut-rate version of Windows for large educational programs that doesn't apply to the consumers in the US that buy the machines.
Microsoft general manager James Utzschneider notes that the company is also not comfortable with the lack of support that comes with the OLPC for those who take part in Give One, Get One.
"This is Windows," he said. "People want to be able to pick up the phone and call us if they can't get something to work."
