Review: Nokia C7 Astound
The complaint about the microSD under the battery isn't really as much of an issue because it also has flash storage as well as the OTG.
The misnomer about AT&T roaming is not correct. The device doesn't roam on AT&T networks because there is no roaming agreement between T-Mobile and AT&T. If there were or when AT&T merge and makes it's 3G towers available, it will be able to roam on them without having to unlock or modify the phone.
He praises the OVI maps but one of the best features of that is that they are offline and can work completely the same as a dedicated GPS device so the device has good use even after it might no longer be your primary phone.