A lot of people rock cases anyways...but you're going to NEED one for this phone. It might be more structurally sound with the aluminum plate, but that plate is going to scratch like crazy...even easier than the glass of the 4/4S. (though not as easy as plastic) I've been using a mophie juice pack air on my iphone4 and my antenna bands have scratches on them just from taking the case off and on. The black phone you might be able to get away with a sharpie to cover up scratches...but the white and raw aluminum....ouch. One drop, even minor ones, you're going to have scratches all over that thing. Not being negative...I'm definitely buying one...big jump over my 4. Just going to be overly-protective till a good case comes out.