Netbook users can scurry right along, there's nothing to see here. So can anyone interested in ergonomics, precise input devices, and gaming mice. Oh, and if you're strictly a desktop user, you can join the exit group too. At this point we should be left with notebook users who demand nothing more from their input peripheral than the ability to move a cursor around the screen. The Disk Mouse concept might be just the device you never knew you wanted.