I'm on AT&T (signed the two year contract when the first-gen came out) and I pre-ordered the new iPhone, at the subsidized price- but the order says activation is through iTunes. Is it possible to activate the new phone through some devTeam program, pop in my old sim card, and then use all of the features of the 3G S without signing the new contract? I don't want/need to unlock or jailbreak it because I don't want to void the warranty or being prevented from downloading updates.