One striking difference between the stores however is that if you plan to purchase at an AT&T store, you can only purchase one phone, and you must be an existing AT&T customer. At the Apple stores, you can purchase an unrestricted amount of phones and you do not have to be under contract from any mobile carrier.
Phone activation can be done manually through iTunes, reminds Apple.
Unlocked phones can be used on any GSM carrier, however 3G is not supported on T-Mobile, making the phone's faster Internet support useless.
Written by: Andre Yoskowitz @ 27 Mar 2009 16:53