Metallo Design has introduced its new Gilty Couture line of gold, silver, and Swarovski crystal accoutrements for the iPod and iPhone. The new collection includes slide-on bezels for the iPhone and iPod touch, which are available in gold or silver with differently-colored Swarovski crystals in each, and are priced between $100 and $130. Also available are “Jewelry Cover” cases for the fifth-generation iPod, iPod classic, second- and third-generation…