BoxWave has introduced three new cases for the second-generation iPod nano—the Active Case, Designio Leather Case and Designio Leather Sleeve. The Active Case ($15) is a crystal-clear hard plastic case with access to all controls. The Designio Leather Case ($30) is made from premium grade black leather and has a padded front cover with strap closure. The Designio Leather Sleeve ($26) is a slim leather case with Click Wheel cut-out. It’s available in pink or black, with or without a belt clip.