BGR posts this video of the not-so-perfect Zorro Macsk for the iMac that turns your iMac into a giant touchscreen in just 10 minutes. It uses infrared technology to sense where fingers are on the display panel and while it does work for simple things, it seems to lag a bit or not work at all for somewhat more complicated gestures. Seems to me like this would be very annoying to use for prolonged periods of time. Better keep that mouse connected.