I have my iP4 in an Incipio NGP (next generation polymer) case which I've loved for weeks. Adds minimal bulk but the material covers the sides/front nicely if dropped on the front and also completely covers the back: Point being; I was tossing my phone over to a friend because he wanted to record himself on Chat Roulette. I was on one sofa, he was on another. I threw the phone in such a way (drunken way) that it ENTIRELY missed the sofa/person I was aiming and flew across the room towards the wall. It landed on the floor back down with a huge "THUD" with asbsolutely no protection other than the case it was in. When I say 'landed' I mean it was THROWN across the room, even height-wise, and landed squarely quite thud-ly on the floor. It was fine, no damage to the sides, back, front, anything. I was amazed.