tnkgrl, feisty femme-fatale of all that's mobile, managed to restrain herself from immediately registering her new iPhone in order to do a little testing with some other SIM cards. She found that while, pre-activation, both the supplied and an existing AT&T SIM she had were accepted (and a T-Mobile SIM unsurprisingly rejected), following activation only the supplied new-contract SIM was allowed.
Locking handsets to a network is nothing new, but locking them to a specific SIM card? That smacks a little of over-protectiveness. Incidentally, the iPhone SIM works fine in other cellphones tnkgrl tried it with.
[via tnkgirl mobile]
Vincent,
Are you still waiting for your phone to be activated? I still am, At and t is already dropping the ball.
Yep… Locking a device to a specific SIM is pretty excessive!
BTW, my iPhone SIM also works with HSDPA (3G) devices.