After trying his hand at iPhone 3G and 3GS cases, designer Ryan Glasgow has come up with a brushed-steel iPhone 4 case. No clue on whether it acts as a Bumper and improves signal, but at $95 I'd hope so.

A nifty addition is the elastic band on the front-flip, that can be used for holding notes or bank cards. The small slot on the front flap allows for incoming calls to be displayed, and as it's made from stainless steel it's ultra-thin so doesn't add much bulk to the phone.

Interestingly, Glasgow addresses the reception issues, by saying that he'll refund people's money if they find the case affects their signal. [Ryan Glasgow via Yanko Design]