iSkin has debuted its new Claro and Claro touch cases for the iPhone 4 and fourth-generation iPod touch, respectively. Both cases feature a hybrid design with an inner layer of clear hard polycarbonate and an outer layer of soft polymer with embedded Microban antibacterial protection. Other shared features include open access to the headphone jack, cameras, speakers, microphones, and, in the case of the iPhone 4, the ring/silent switch —…