When the new iPhone comes out I will be able to upgrade to the new iPhone at the upgrade price. So I will have my old iPhone 3G. If I give my old iPhone 3G to my girlfriend will she have to pay for a data plan even if she doesn't want one? From my understanding ATT subsides the iPhone since you are paying the extra $30 a month for the data plan. So as long as she owns the iPhone when signing up for ATT can she just get a normal plan and block all internet access to her account?