You can never have enough superfluous additions to your computer rig in your quest to become the ultimate geek. So, for the nerd who simply can't stop adding to his set-up we present the Genius TRAVELER 350 USB trackball device. What is this thing good for? Mostly weirding out your technophobe friends and acting as a five-button control ball mouse backup for when your IBM Thinkpad interface starts behaving oddly. Unfortunately for Mac heads this is a WindowsVista/XP/2000 only gadget (selling price 2,999 yen or $28), apologies to all you MacBook Air heads.