It seems like just yesterday that Big Red was firing up its EV-DO Rev. A network in America, and already we're seeing signs of life with Rev. B. In all honesty, though, we've known about the next iteration of EV-DO (and the next-next, for that matter) for years now, but said Chinese carrier has just completed what it calls the world's first EV-DO Rev. B VoIP call on its CDMA2000 system. In other words, this is the first time a CDMA ca
