I used to go naked with my thunderbolt. that is until the day I dropped it 5 feet onto a concrete floor and broke the display, and no insurance. I replaced it with the Razr. Decided to put the verizon brand black hard silicone case on it, and then added a zagg screen protector. Love the case, not so wild about the zagg protector.
I suspect the hard silicone case will protect from most falls. havent decided yet how long I will keep the zagg screen protector on. I got some pretty bad gouges on my thunderbolt, which was supposedly gorrilla glass too, so thats why I put the screen protector on this phone.