Hi, has anyone pre-ordered online and switched carriers before? I'm thinking of switching from AT&T to Verizon. What should we expect? Can we keep the same number when we switch? Is it better to do it at Apple website or the Verizon website? Should I cancel my AT&T contract before preordering and switching or will Verizon handle the cancellation for me? Please advise. Any insight and/or suggestions will be greatly appreciated. Thanks.