I see huge opportunities here. There are people all over the world solving the same local problems, shared across disparate areas. Furthermore, there are resources, ideas, talent, and real solutions being developed in certain areas (even the US and Europe) which I feel should be collaborating with groups like this to better understand their needs and great a more global technology community. Likewise, there are no doubt some incredible, innovative solutions coming out of lesser-known technology centers with which the right localization could make a huge impact here in the Western World.

I'd be very interested to see a group acting as a "liaison" between these communities to help solve problems more efficiently. Example: You're developing a sensor network to measure rain levels across cell phone towers? I have an algorithm that can measure this data effectively and correct for error so you don't have to. We already do this today with the overload of SaaS startups -- you're building some monitoring platform? Use Librato to capture the metrics. You need a disaster response application that can aggregate data and display the most severely affected areas? Use Parse for the backend and OpenStreetMaps for the geo -- no need to do it yourself. If you're solving a problem, there is a 70% chance that somebody either solved it already, is currently trying to, and/or has a good idea about how to solve it. Increase the collaboration to a more personal, local level, and you've got something big.