As contrasted with its earlier iPhone bezel design, Metallo Design's new Gilty Couture Chromium Cases for iPhone ($200-$250) are actually fully metallic covers for the iPhone, strategically cut to avoid interfering with its wireless functionality. The Chromium reference is a European name for what's otherwise known as chrome, described by Metallo as "black gold" with a jewelry quality finish. In the standard stoneless $200 version of the case, you…