I've stopped using a case over the last month. I just didn't like the added extra bulk of a case. I didn't have any issues with signal before or after taking off the case so it's all good. Now I just have to hope I don't drop it
I've found that any sort of protection is completely unnecessary for daily use. No need for a screen protector or damage absorbing cases. It just doesn't get scratched or break without considerable force.
The primary reason to buy a case would be for aesthetic reasons or at the most to protect the side metal band from getting dented or scratched.
Do I even really need a case for the iphone 4s? Is it better to get a cheap silicone case or a something like the Speck PixelSkin HD. I was pretty rough with the Epic 4g and the iphone looks like it cant really take a fall at all.
I had an Atomic Composite and a Grove bamboo case. Both improved the signal. I have the Pixelskin HD as well but it's ugly and very hard to press the buttons. It's the best silicone/plastic type case though.