The One Laptop Per Child project is something that I think is a seriously cool idea. The idea is to come up with a sub-$100US laptop for use by poverty stricken countries as educational tools. Local-mesh wireless setups, low power processor, flash memory so there’s no moving parts, some of them will be designed to be crank-powered so they don’t need local power infrastructure - hell, I wouldn’t mind paying a semi-normal retail price for one or two for my own use if it’s going to get me one of them and help the education of some kids 🙂 They’re being based on a free operating system as well - Fedora Core 5 is the current development environment, which is seriously cool!