You can sum up the Kanguru Zipper HD 2.2GB USB drive in a word: slick. The silvery satin-finished shell houses a 2.2GB hard disk, measures a mere 2 by 2.4 by 0.6 inches (HWD), and weighs only 1.4 ounces. It's nearly as easy to carry as a flash-memory USB drive, but with more capacity and a lower price. The Zipper is also available with 1GB of storage for $50 less.