If you picked up Samsung's 640GB S2 portable USB hard drive earlier this year then you might want to look away. Sammy just update the drive with a USB 3.0 interface and 7,200RPM spindle speed that should easily best its predecessor when it comes to pushing the bits around. Then again, maybe you bought the Michael Jackson edition in which case, a USB 2.0 interface and 5,400RPM speed are the least of your problems.
