The following review is from PC Magazine. These devices are awesome. One of my consulting clients just bought the Black Cherry shown here. It is very stylish as well as functional. He can carry his entire office 320GB in his pocket.
Some external hard drives are bulky, hold massive amounts of data, and require their own power supply. Not so the new breed of portable hard drives. They’re pocketable—especially in winter. They draw all their power from your computer’s USB connection. And they hold far more data than a thumb drive. Pocket hard drives? If you have data to transfer, don’t leave home without one.