Sena Cases has introduced a set of six new leather cases for the iPhone 4. Each case is handcrafted in Europe using full-grain Italian Napa leather. The MagnetFlipper is a bottom-hinged design with a magnetic fastening system. It has a belt clip and allows access to the iPhone's ports. The WalletSkin is a bottom-hinged wallet case. The WalletSkin has four pockets for credit cards and a semi-transparent ID holder built into the rear flap, which is kept closed with a protective snap.