I don’t know if folks know of the project that started off I believe at MIT to distribute cheap laptops to children in developing countries. Now called OLPC for one-laptop-per-child, its website is http://www.laptop.org/
David Pogue of the New York Times has a review of the laptop at http://www.nytimes.com/2007/10/04/technology/circuits/04pogue.html
People in the U.S. and Canada can participate until Nov. 26, 2007 in a give-one-get-one promotion. For $400 ($200 being tax-deductible) the participant donates one computer and receives the other: http://www.laptopgiving.org/en/index.php In addition, T-Mobile offers 1 year of free hotspot service to each participant.
Obviously, I plan to participate. This just might be the vanguard of a revolution in computer design and ubiquity.