Hey All, I need some advice.. i have been looking into the metal battery covers for the iPhone and i would love to replace the battery cover of my new 4s. So my questions are: 1. will changing the battery cover void the apple warranty in any way? 2. i am thinking of changing it to this cover.. Link here Would that case work with the new iPhone 4s? Is there going to be an issue with the new camera? The reviews seem sound but obviously they are all for the iPhone 4. Any help is greatly appreciated.