I'm only 14...I plan on buying an iPhone though... I've been saving up for the past couple of months now because I've wanted one. I have about 150 and my parents are willing to pay the rest now since the price change and I might even sell my touch. So one question... How much does it cost? I'm already an existing at&t customer on a family plan...Excluding the price of the iPhone can anyone tell me how much the price of my monthly bill will be?