The project is still in its infancy, but early experiments are promising: Facebook teamed up with Globe to bring cellular access to a Philippines village, and the UK's EE is testing a community-run 4G network that should connect more of the Scottish Highlands. It's an optimistic initiative, and Facebook certainly has a vested interest in getting it off the ground (better telecoms mean more Facebook users). All the same, it could easily be worthwhile if it gets more people online.