Agreed, I was quite happy to see Apple use the most current IETF standards, alas with some secret sauce (the missing 1%). However, the fact that FaceTime only w

Agreed, I was quite happy to see Apple use the most current IETF standards, alas with some secret sauce (the missing 1%). However, the fact that FaceTime only works through Apple's SIP and NAT traversal infrastructure (assumed, since they seem to use TURN) effectively makes them the owners of all FaceTime users identity. We will have to see how much they open things up. My guess would be that they allow others to make FaceTime clients, but keep control of the server side. In theory, Apple could make an end-run around the telcos, since they will eventually have a huge directory of phone numbers and email addresses for all FaceTime users. At that point the carriers truly become a dumb pipe. Maybe that is Apple's plan, after all.