DiamondTouch, not Surface (Score 1)

Somewhat off-topic, but the table in question is MERL's DiamondTouch, not Surface or a derivative thereof. The DiamondTouch predates Surface by quite a while - I got to use one at SIGGRAPH 2006. It uses an overhead projector onto the interactive surfac and pads that you must touch with some part of your body to use, generally by sitting on it. The table itself emits signals that are recieved through your body by the pad. This is in direct contrast to Surface and similar technologies, which use infrared emitters and cameras to detect touches, meaning no pads and a number of inputs that is only limited by the tracking software.

That being said, this still quite a neat application, and makes much more sense as a live monitoring tool than a wall of CCTV monitors. If you really wanted to get fancy, the bank of monitors could be hooked up to this system, displaying the most relevant camera footage at any given time.