Purchased a new account AT&T iPhone 5 and now I find I need another iPhone 5. What is the best way to do this? I would like to have one account and share talk minutes, data, messages and not let the bill be over $160/month. for 2 phones I would like to use apple store because I have a $280.oo gift card. Hope I will not have to pay full price for second phone... any help or suggestion for me.