I have a carrier-unlockable iPhone. That means they sell it locked but will unlocked upon request.
As is generally the case with carriers, mine is a sack of incompetence. I requested the unlock and got many different responses and directionless guidance in the process. I have reason to believe it may be the case that they did attempt to unlock it at some point.
I'd like to know how I can check wether my device is still carrier-locked or not.
I'm on a Mac, and I'm enrolled in the iPhone developer program. It would be of more general use to have an answer that doesn't depend on the latter, tho.
While "just pop in a SIM card from another carrier" is a technically feasible answer, I'd rather have one that doesn't involve my getting off my chair.