Ok... sorry for the repeat. I read a similar questions, but did not see any replies...

Current AT&T business customer. WM6 Moto Q with enterprise data plan. I want an iPhone, but am held up by purchasing...

If I buy a 1st gen and unlock, would it feasibly work with my current SIM, right? I just want to be able to swap back and forth on the weekends...

Also- does the account easily reflect IMEI? I really don't see why it would matter, as I am not trying to gain extra services. I have the complete enterprise data/unlimited text/etc...

THANKS!!!