my family plan when I bought 2 iphones 3g 16gb for me and my brother was 700mins($70), 200 sms($5) for me, 1500 sms($15) for my brother, 2x data plan($60). Then we changed plan to lower minutes (550mins). Guess how much is my 1st AT&T bill charges? Current Payment & Charges Last Payment Received $0.00 Current Account Balance $384.80 AutoPay to be Applied: 08/23/2008. ----- It's twice than its supposed to be. Found that they charged extra 1 month infront if we change plan.(they call it "deposit") which will be returned when we close our account. When I asked the AT&T store they said there wont be any charges if we want to change plan. But actually, there is extra "deposit" payment as u all can see in current account balance. Becareful if you wanto change your plan!!