Protesters and revolutionaries with an $x00 iPhone and a $99/mo data plan... Interesting idea though - how could you create a system that would be useful? Self

Protesters and revolutionaries with an $x00 iPhone and a $99/mo data plan... Interesting idea though - how could you create a system that would be useful? Self-hosted/decentralized? Would hooking it into TOR or something cause an unrealistic barrier to entry for average people? How much of the value of Twitter/FB during a revolution is in pulling in the extended networks of people who are already on the system but not yet involved and how much is as an anonymous communications device between people who are already involved?