I work for AT&T. If you didn't already have it it's impossible to get it added in a store. I'm not sure if the iphone2g plan someone posted earlier works or not. I feel like it wouldn't because even people with the unlimited 2g data were NOT allowed to switch to unlimited 3g data because the features were completely different and cost a different price (trust me this pissed people off on launch date) and AT&T caught onto that really quickly (and what I mean is if someone had a iphone2g on unlimited and came in to upgrade to ANY iphone after the unlimited cutoff date our system WOULDN'T allow it to happen) My only theory of how to do it is to call into customer service and bitch about leaving AT&T and see if they'll add it to keep you as a customer, and if not keep trying, sometimes you can get things accomplished if you talk to the right person. but DO NOT try this in a store, we don't have authority to override it and at&t employee's literally have NO way to add it, because it doesn't show up anymore for customers who never had it. hope this helps!!
well when i get my iphone 4 (hopefully ill get it) im going to see if calling them and see if they can do it
and if i got the unlimited plan would it be $30 a month?