H2O Audio has teased the release of its new CAPTURE Waterproof Case for the fifth-generation iPod nano next week, allowing users to record video with the iPod nano underwater—a first for an iPod case—while still maintaining access to all of the iPod nano’s controls. The case is made from polycarbonate plastic and will be submersible to a depth of 12 feet underwater. It will include a 3.5mm pass-through headphone connector compatible…