Let me put it this way: after the massive MySpace exodus a while back, it was clear that people don't mind switching services as long as a large portion of their friends switch as well. I admire what you guys are doing a lot, but I'd love to see some way for buddycloud to evolve over time without causing version conflicts in the different clients and servers who may be running different versions. I guess my main point is that a single point of failure is also a single point of success since there are much fewer moving parts.