I bought a Speck case. Hard on outside and cushion on inside for shock absorbed. Knew I would drop it and sure enough dropped it right off the bat! Scratches on case but phone fine!
I have an incipio case and have dropped it a few times and never had a problem yet *knocksonwood* Also have an otter box case I use when going to the beach with it in the sand and haven't had a problem with that either!
not me but my brother just dropped his iphone4 on the concrete face up!
phone works just fine but the crack on the back of the iphone breaks hearts who see..
now he's using his OPT limited edition croc pattern leather armor case, to protect, but more to cover up the crack!