There is a tremendously well-researched, well-reasoned history of the OLPC, and it’s subsequent effects on the computer industry, at “Why Microsoft and Intel tried to kill the XO $100 laptop”. A minor quibble about the article: the author didn’t mention the ASUS Eee PC, which clearly owes it’s existence to the OLPC, and then went on to spark other ultraportables such as the HP 2133 Mini-Note.