nah never happen, iphone fragile![]()
I've had an iphone 4 in a pixel HD case since day one. I've baby'd the phone as best I could. However, the metal rim is scratched/ding'd all around.
Basically, if small grains of dirt can get into the gaps between the phone & case (and they will after some time), then scratches can occur.
My screen is perfect however, as it's always had a protector on it...
I use Flex Series from Otterbox and it scratched the silver sides of my iphone.