Following Apple's announcement of the fourth-generation iPod touch, Belkin and WaterField have launched cases for the new iOS device. Belkin has announced 14 new cases -- five grip cases, two shield cases, four verve cases and three armbands. The grip cases are textured for easier handholding. The Grip Ergo with Strap features a fitted design and a removable strap, in translucent black or taro, while the Grip Groove Duo has a wavy texture and arrives in either black-and-clear or gray-and-purple color combinations. The Grip Graphix swirls two colors into the wave text