When Apple accessory design shop Twelve South first got into business three years ago, its fate rode on the success of one product -- the BackPack. This product consists of a shelf with tool-free clips that can be used on the "arm" of any iMac or Apple Thunderbolt (or Cinema) Display, and it's been a hot seller since day one. Now Twelve South has given the three-year-old product a new look and new capabilities.
The new BackPack (US$34.99) now adds vertical support pegs, cable management rails, and the ability to use the BackPack as a front-facing shelf. The support pegs can be used to hold a MacBook Air vertically on the back of a ThunderBolt Display or provide additional support for a vertic
