BornRich blog has a neat list of the top 10 high-tech coffee tables for your home. This one above is the interactive LED coffee table, called The Wave, which senses where over the table you put your drink and lights up accordingly.
Link - via GeekAlerts
The one in the picture is an older version; the new ones have solid black circuit boards: http://www.youtube.com/watch?v=Y3ulBf7NIl8
http://blog.wired.com/gadgets/2007/06/video-hilarious.html