If i get an iphone, given it's capacity, i would definately retire my nano. I mean i love the nano and all but I don't see the point in having two of the same thing especially given the price of the iphone. but i do have a nike plus shoe kit, which can only be used with the nano (although i can't sync my runs through itunes, because i created my account from the nike plus site and not from itunes, and itunes doesn't give a log in option from with in it's interface, just a 'create an account' option, a different matter if anyone know's how to solve it.) So i want to use the nike plus kit, but not have to keep a nano just to use it. anyone know if it will be possible?