I ended up with too many!
Great problem to have, but I have a question for everyone. I pre-ordered an iPhone 4 through AT&T but later that day they said it didn't go through, so I ordered one through Apple. The next day i get a confirmation from AT&T that my order through them went through after all. My question is if i activate the one from AT&T, since it's due to arrive first, would AT&T take the one sent from Apple as the return or does it have to be the one sent from them?