Hi. I need some clarification with this scenario. Suppose right now there are 3 phones on a family plan and none of them are smart-phones. All 3 are eligible for AT&T upgrade to iPhone 4. I will get 2 of these upgraded to an iPhone 4. That means $15 data is added to each of these 2 phones. Now suppose I decide in 4-5 months that I want to get rid of and sell one of these iPhone 4's for whatever reason (either for the money, or to exchange for a white one, or whatever personal reason it may be). Now my question is.. Since I got rid of 1 iPhone 4 and start reusing an old non-smartphone that I was originally using prior to it, do I have to continue paying the $15 data for it because it is under 2 year contract, or can I remove the $15 data and just live out the 2 years as a phone plan contract without having to pay the data in addition to it? I still have 1 iPhone 4 on the family plan so obviously I know I will continue paying $15 for that one though. Thanks!