Late breaking news: iPhones AND SIMs locked to AT&T

You'll get this story tomorrow from AT&T, but word has it that iPhone subscriber identification cards -- those little chip-like cards that are standard throughout the GSM mobile phone world -- are NOT interchangeable with other carriers. So if you have a T-Mobile GSM account and somehow get an iPhone in your hands, you won't be able to swap in your SIM card and have your iPhone work on T-Mobile. Apple signed an exclusive deal with AT&T -- and they are using every technology in their arsenal to enforce that exclusivity. Sorry.

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