I have an iPhone 4 that is on its last leg: it overheats and can barely hold a charge. I have AT&T and was able to purchase my iPhone 4 (in May 2013) for $1 when I renewed my contract. I'm looking to do something similar once the price drops on the iPhone 5. Do we know when that will be? I assume it will be relatively soon since iPhone 6 will be announced in a few hours. Thanks for your help!