We don't have edge here, I think. EDGE is something they have in America that's better than GPRS, or so I've read on these forums. I've had a 3G phone since about a year after they came out and I never expected there to be a 3g iphone within 6 months of the rev. A, purely because i remember the size of the first 3Gs when they came out and the sub-24hr battery life in standby mode they were getting when 2Gs like the 6310 (the phone so good it got discontinued to encourage stubborn users to upgrade) were getting 2 weeks. If a 2G iphone's weakest point is its battery, don't expect 3G for a long time. Phones like the k800 have only just made 3G tolerable. Besides, UMTS still costs a bomb anyways, just as GPRS did. its just a lot quicker. i expect most ppl will only use their iphones for email unless they're in a wifi hotspot.
I'm pretty happy about all this news TBH, because I've been meaning to switch to O2 anyways as having finally left 3 (honestly, don't!!!! even if u don't care about the technical hitches, the fact that they have 20+ third party ppl ringing u ad infinitum to offer u an upgrade from around 9 months before you're even allowed to all the way to a year after you've ported the number to another network is enough to make u wanna get a new number) for vodafone, i'm not so sure the premium service is worth the premium price. The iphone should drop when my current 18month contract ends. That said, I won't even consider it unless there's a 16GB model by then as I'm struggling with my 30GB as it is.