iPhone 4S Dimensions same as iPhone 4 (Verizon Model)
We've been able to confirm that the iPhone 4S will have the same physical dimensions as the iPhone 4. Also the camera hole on the back of the iPhone 4S is the same size as the one on the iPhone 4.
The only issues we may run into with the iPhone 4S dimensions is that the Mute Button/Silent Switch looks like it's in the same place as the iPhone 4 for Verizon. Meaning that any cases that are only designed for the iPhone 4 (AT&T) will likely have some issues with proper alignment for the Mute Switch hole that is usually built into most cases.
Having said that, most iPhone 4 cases being sold today are compatible with both the AT&T and Verizon varieties of iPhone. So these cases should have no problem giving proper access to the Mute Button / Silent Switch on the iPhone 4S.
For a wide variety of the Best iPhone 4 & iPhone 4S Cases visit iPhone Case Warehouse