For example, as hackers and entrepreneurs we could work to develop an open online app that could make it easier to introduce kids in developing countries to CS and provide mentorship in some way. At MIT there was an program called AITI (Africa Internet Technology Initiative) that sent students to Kenya, Ghana and Ethiopia over the summer to teach programming to high school kids there. What about a project that would provide some seed money to local African entrepreneurs to setup educational internet cafes in communities there?
It is a huge problem and would be really interesting to discuss the issue further here.
(Posted earlier here: http://news.ycombinator.com/item?id=208030 but recommenting since the submission is now getting some traction)