Griffin Technology today announced three new additions to its case lineup for iPod. Courier is a versatile carrying case for iPod and all its gear. Included are separate, detachable cases for iPod and iPod nano. Slip your iPod into its case, then slip it, case and all, into the Courier carrier. When you take it out, your iPod stays inside its own protective case. So, even when you’re using your iPod apart from Courier, it stays protected.