Does anyone have any idea what iPhone use/activation will be like for current Cingular/AT&T customers? I am currently on Cingular/AT&T using an unlocked Nokia N80 that I purchased from Nokia direct. I didn't ever have to call up Cingular to start using it as I had already been using their service with another phone. I just put in my SIM card and voila. I am HOPING this will be the same for the iPhone. Because of the law requiring that all cell phones be unlocked, I am assuming this should also apply to the iPhone. AT&T being required would be specific to the cellular data plan, visual voicemail, and other unique features of the iPhone that require the AT&T network, but otherwise it would work for calls on other networks as well as WiFi. Thoughts?