SmartDisk today announced its new Rover portable USB data storage device that doubles as an MP3 audio player. “Small, lightweight and sturdy enough to clip to a shirt, and versatile enough to be used as a USB storage device, Rover is simple and easy to use.” The unit slides apart to plug directly into a USB port and is automatically recognized as a removable storage device. The user can then drag and drop music, digital images or data files. Rover will be offered in 64MB (US$99.99) and 128MB ($149.99) capacities, and will ship in February.