Merel Technologies showed off a very cool multi-touch web table "mTouch" that uses gesture recognition, object recognition, and multi-user multi-touch to create a new way to interact with media and kiosk apps. It costs $3,200 for the 32-inch model and $4,200 for the 42-incher. The table is made by Merel Technologies in New York and it uses a stacked multi-touch layer (looks like IR) along with an LCD TV to display the interface. A built-in PC runs the whole thing and you can tear it down to create a coffee-table sized device. You can also customize colors.
More Info: Merel Technologies