iSkin's Revo lineup has been on autopilot for the past several years, as the company essentially perfected the art of two-tone, finely detailed silicone case manufacturing long ago; new versions were mostly just a matter of tweaking the positions of holes and changing the curves around the corners. Revo4 Special Edition (aka Revo4 SE, $45) offers the first new feature we've seen in some time, adapting iSkin's detachable hard plastic screen protector…
