I have an iPhone that I "activated" just to use as a iPod/wifi device. As that, it works perfectly. I'm now at the end of my Verizon contract, and am thinking I will get a free RAZR from AT&T, use it for a bit, and then activate the iPhone. Question--will it work? I have not updated the firmware--it is on 1.0.2--and have not "unlocked" it. TIA!