Contrasting with the company's standard Tradition cases, Tradition B for iPhone ($45) is an open-faced leather case design that permits full access to iPhone's screen and home button without interruption from a lid. Once again, a detachable belt clip and nub are included in the package, along with a screwdriver to attach them to the case. Fifteen colors are available, including three suede versions -- Sandy Vintage is shown -- and twelve glossy leather…