I am sure those phones are flashed with a different ROM (flashing is another story). No need to even look at the thread. Out of the box, you CANNOT use any sprint/verizon GSM/CDMA phone with a tmobile/AT&T sim in it, period!
Originally Posted by Slinkwyde
What about this 35 page thread on XDA-developers with lots of Verizon HTC Droid Incredible 2 owners talking about how they're using it on the AT&T and T-Mobile networks? Sure, it only gets EDGE data speeds on those networks, but that's because the phone's GSM radio doesn't support the 3G bands used by AT&T or T-Mobile. The iPhone 4S does.