I read an article a few years back about how Twitter could potentially be of great value as a peer-to-peer PSP. It's more of a long shot (and they probably shou

I read an article a few years back about how Twitter could potentially be of great value as a peer-to-peer PSP. It's more of a long shot (and they probably should've started a long time ago) but I did find it an interesting model. I just don't see advertising work at the scale that they'd need to justify a ginormous valuation (just as FB isn't very convincing with their ad network). http://www.businessinsider.com/2008/6/how-twitter-will-be-worth-a-billion-in-a-year http://www.businessinsider.com/2008/6/how-twitter-will-be-wo... Also, just realized that Square is set to go into this direction.