According to this article on the CNN website initial prototypes of MIT's One Laptop Per Child (OLPC) device will be delivered to 500 children in Thailand this coming October/November:
More than 500 children in Thailand are expected to receive the machines in October and November for quality testing and debugging.
The One Laptop Per Child program, which began at the Massachusetts Institute of Technology's Media Lab and now is a separate nonprofit organization, hopes to deploy 5 million to 7 million machines in Thailand, Nigeria, Brazil and Argentina in 2007.
Thailand's government is expected to buy 1 million in the first year.

But Prime Minister Thaksin Shinawatra announced in a nationwide radio broadcast that "if this project is completed" it would reach all Thai elementary students. He said each student would get a free computer "instead of books, because books will be found and can be read on computers."
The creator of the laptop program, Nicholas Negroponte, has set a goal of making the laptops for about $100 each, though he expects the initial figure to be slightly higher and the long-term cost slightly lower.
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Official website for the OLPC project:
http://laptop.org/