Darn it, seeing the same message when I try to use safari, youtube, weather, etc - "Could not Activate EDGE: You are not subscribed to EDGE". It was working fine for me on Friday & Saturday, but for the past two days - nothing.
Just got off the phone with AT&T, who passed me to Apple, who passed me to AT&T, who passed me to Apple, who said it was definitely AT&T. They told me the network is just so busy that it probably is overloaded right now. They honestly said to try it again later in the week!?!?!!?
Oh well, at least the other iPhone features are keeping me entertained - at least the phone, voicemail, sms, etc.. works fine...
One thing to add, the Apple person had me eject and reinsert the SIM card - she said this fixed this for a few other customers. Not me...