I was wondering if a case for the 4S that said AT&T exclusive would work with a Verizon phone. I don't see why it wouldn't? I'm talking about the Speck Candsyshell. Thanks for comments!
Assuming it IS for the 4S...I think it was the 4 that had a slightly different layout of the mute switch/volume key area, and not all cases were compatible cross-carrier.