Another 4GB USB Drive doing the rounds is the Lexar JumpDrive 4GB Model which is now retailing for 199$ and includes lifetime warranty. The drive comes bundled with a polishing cloth for those who are anal about cleanliness and also comes with a number of applications like Ceedo (U3-like app platform), on-the-fly AES encryption and file shredder. You can also laser engrave text on the drive .