Short description of Pigeonhole U3 Smart Drive Organizer 1.30.04: Pigeonhole is the " U3 Smart Drive" organizer. Just type or paste anything you want to remember into one of its pigeonholes. When you need to recall the information, all you have to do is move the mouse over the program and the contents of each pigeonhole appears in the viewer automatically as the mouse moves over it. No opening files, no keystrokes, no mouse clicks - You can see up to 175 different bits of information just by moving the mouse.