After over a year of speculation, The One Laptop Per Child foundation announced they will begin to offer Microsoft Windows XP on the OLPC. Limited trials will begin immediately with general availability to follow.

From the NY Times:

"Windows will add a bit to the price of the machines, about $3, the licensing fee Microsoft charges to some developing nations under a program called Unlimited Potential. For those nations that want dual-boot models, running both Windows and Linux, the extra hardware required will add another $7 or so to the cost of the machines, Mr. Negroponte said. The project's agreement with Microsoft involves no payment by the software giant, and Microsoft will not join One Laptop Per Child's board. 'We've stayed very pure,' Mr. Negroponte said."