Hello everyone, I got a black iPhone 4s on launch day and my dad's white iphone 4s has yet to come in. He has a different account as I do so please let me know if this will work. I am trying to switch phones with him because he wants the black and i want the white. Is this possible to do so? We both have sprint but under different accounts. Please advise. I called Sprint and one store says i can't and another store says I could. So I am pretty confused here.