Remember a while back, MIT developed a $100 laptop. This was an experiment. It was decided that, if it could be done, it could be used to make computing available to the masses in developing countries. Well they did it. Looks like, there is now a Taiwanese company which wants to mass market this computer.
The coolest thing that I found in this was, the computer actually works using wind-up power ! Wow.
Read the $100 laptop page here.