I watched Morgan Webb's WebbAlert podcast (http://webbalert.com/2008/06/june-11th.html) from June 11th and she said that existing iPhone customers will continue to pay the $20 a month rate for the new 3G iPhone data plan. I did some more research and found a discussion on the Apple forums in which a couple of people got the same information from AT&T. I have scoured the web and have found no reference to this in any of Apple's nor At&T's press releases. I will try to contact AT&T today and see what they say, but it seems like it depends on the rep you talk to. Anyone have any other information on this??