Now, sadly, I must ask, is someone going to try to make this proprietary and embedded, contained within hermetically sealed hardware enclosures, complete with convoluted bootloader and behavioural studies rootkit, to try to make billions from it?
To my knowledge the low-level part can happen right now using freely available code. Is it naive to think we could keep this simple and open?
Even the p2p FB piece is possible, assuming you do not need to have 1000's of friends on each of your separate social networks.