People are crafty. You dont have to have electricity at home to charge your phone. Its enough there is one power source in the village. (There was a news story about a boy that built a windmill, and the villagers paid him a bit to charge their phones). You dont even need your own phone. You can share or rent one by the minute.<p>Second hand smartphones are getting pretty cheap. 2.8 billion people live on less than 2 dollars a day. A second hand smart phone might go for 20 dollars. So its a few weeks worth of savings.<p>Imagine all those people getting on Facebook. They will find a way to use it for what they need.