walked into the san francisco store, lots of 4kb iPhones, but have been trying to activate for 5 1/2 hours. An ATT rep had no idea of the problems and had been on the phone with me the whole time and finally an Apple rep said it could be up to 48 hours before I get activated. I didn't even look at the phone before I bought it and now just a connect to iTunes screen
The amazing thing is that nothing works at all unless the phone is activated. If I could just use the time to sinc up all my apps and contacts, waiting for forever for activation wouldn't make me want to throw it out the window. There is a $50 "opening" fee if I attempt to return it I noted as well.