http://www.viddler.com/player/adffa1f0/ In the Home Appliances section of IFA 2008 are dozens of brands of coffee makers, most doling out freshly brewed joe to bleary-eyed conventioneers. The video above demonstrates one of the larger of such displays. A small pad on the bottom of the coffee cup contains an icon, which a camera under the table identifies and tracks as it slides around the surfac