It's amazing to see how developing countries simply jumped to wireless technologies without having the need to build expensive cable based phone networks like what developed countries had to go through. I read a story of a farmer in China who sells his crops to a shady middleman who lies to him about the market price of grain. Finally when he got a cellphone and was able to subscribe to a messaging service that gives him live updates on prices he was able to negotiate better and improve his standard of living. This is truly empowering.