Speck has announced its new PixelSkin case for the fourth-generation iPod nano, and has also revealed a number of upcoming cases for the nano 4G and touch 2G. The PixelSkin for iPod nano 4G is a form-fitting silicone case featuring a textured tile pattern for added grip and shock protection and open access to all ports and controls. It will be available soon in nine nano-matching colors and will sell for $20, a version for the second-generation iPod…
