Though many companies have released simple wristband attachments for the small sixth-generation iPod nano, Griffin's new Slap Case ($25) brings the company's typical thoughtfulness to bear on the "nano as wristwatch" concept. Made from rubber in your choice of colors, Slap provides protection for everything except the nano's screen and headphone port, which are exposed for your use; one side of the case provides button access, while the other covers…
