$100 laptops for children in developing countries
Developed by the MIT media lab.
The proposed $100 machine will be a Linux-based, full-color, full-screen laptop that will use innovative power (including wind-up) and will be able to do most everything except store huge amounts of data. This rugged laptop will be WiFi-enabled and have USB ports galore. Its current specifications are: 500MHz, 1GB, 1 Megapixel.
Obviously, clean water, vaccinations, nutritious food, health education, and most importantly, life without war are all more important than portable computers for many needy children, but I think this is a big deal for areas that have basic needs covered, but their schools are far behind the modern world. This technology could be a very important pipeline of information and education.