...AT&T remains sole iPhone carrier in US, revenue sharing axed (Updated) ... If you purchased the original iPhone on or after May 27 and want to swap it with the 3G iPhone, you will be able to do so without having to pay an additional handset charge. (There is, however, a 10 percent restocking fee on your old phone, apparently.)...So if I buy one today, can I swap it with the new one in July? Tempting, especially for a refurb.