As a clone of Griffin's Elan Form cases, Case-Mate's new Dockster for iPhone 3G ($30), iPod nano 4G ($15), and iPod touch 2G ($30) is a plastic shell with a thin layer of leather covering part of its exterior surfaces. The Dockster name comes from its ability to slide its bottom half off for easy use with form-fitting docks -- not that they're common for these devices -- as well as other potentially incompatible accessories. Case-Mate includes protective…
