iSkin today announced the availability of new iPod Duo protectors for the iPod nano. New colors available include Purple Haze (Clear on Purple), Acid Groove (Green on Green), Phantom Rave (Black on Red) and Polar Blast (White on Blue). The iPod Duo features a dual layer shock-resistant silicone skin that guards against bumps, scratches, dirt, and other unwanted elements. Constructed of scratch-resistant silicone rubber, iSkin iPod Duo is a form-fitting protective skin that is designed to integrate with the appearance of the iPod nano and allows for complete functionality of its controls. The Duo also features the new RevoClip 2, a newly designed removable rotary belt clip, assuring maximum portability, comfort and style. iPod Duo is available now for US$29.99.