Obviously the new iPhone has GPS built right in. We all saw it in the keynote. I just need some clarification on whether or not iPhone users wanting to use GPS need to sign up for the additional $10/month per phone for AT&T's GPS service. Chances are this is what experts call a "no brainer" , but I think it's appropriate to lay down as many cards as possible to make all the features of the phones and required features of a plan w/ AT&T as clear as possible.