It is a tough call, isn't it? These people are using what they know best to do something for kids in developing countries. In the interview, Negroponte says, "I can't think of anything better," and that might be most important line. These OLPC people are sincere and mean well, but you don't think they have thought enough about it yet. I would say in their benefit that they are doing what they know. They are using what resources they have. They know PCs, so that is what they are offering.