Originally Posted by matt88si
I don't see why you wouldn't be able to just purchase the phone from either carrier and apply it to any other carrier. It has a SIM card slot so that would allow you to use AT&T for sure...
Some carriers are reluctant to give up unlock codes unless you either have an account with them, which I don't, or the product has been on the market for a few months.
Also, with the Verizon branded Droid Global/Pro, while both phones have SIM card slots for GSM networks and international roaming, they did not function for US based carriers, and were pre-loaded with Vodafone SIMs. I'd imagine that Sprint would also do something similar.
Either way, I'd have to pay full price for the phone, so I'd rather buy a fully GSM based phone, which is already unlocked, vs. a phone with both CDMA and GSM radios.