Alot of existing iPhone 4 cases are now being marketed as iPhone 4S cases; but I'm not sure that all of them would be compatible with an iPhone 4S. Can anyone who has found a case that fits add it to the answers?
For example my girlfriend has two Incipio iPhone 4 cases (DermaShot and NGP) and neither of them fit my new iPhone 4S (due to the position of the mute switch and the volume buttons) despite the Incipio site saying that they are iPhone 4S cases.