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 touch is planned as well. In addition to PixelSkin, Speck also announced that it will be releasing ToughSkin, SeeThru, and at least two other previously unannounced case designs for the fourth-generation iPod nano and second-generation iPod touch. The first cases will be available later this month followed by subsequent releases in October and November.