One question I can't seem to find an answer is the use of a valid ATT/Cinglular SIM from a phone with a data account already. My company phone is a BlackJack w/data plan and I wanted to hear people's experience with swapping ATT SIMs - does it just work or do you need to SIM-unlock the iPhone first?
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One question I can't seem to find an answer is the use of a valid ATT/Cinglular SIM from a phone with a data account already. My company phone is a BlackJack w/data plan and I wanted to hear people's experience with swapping ATT SIMs - does it just work or do you need to SIM-unlock the iPhone first?