Has anyone seen this before? It was published on slipperybrick.com way back in 2008, but I just saw it today:

Pong has taken many strange twists and turns through our culture since the 70s and has somehow endured, despite it’s simple nature. Well, it’s back again and this time the game takes place on a table, allowing you to play and then dine. Or dine and then play a game for dessert. It’s from the mind of Moritz Waldemeyer. The table uses 2400 LEDs for display and has 2 trackpads.
Turned on, the trackpads let users control the paddles. Turn it off and it’s just a plain table again. It was part of MOMA’s Elastic Mind exhibit. I for one would love to see it go into production, but somehow I doubt it will. For one thing, it would force you to clear the table everytime you want a game and that’s just a bit too much if you love Pong and dining.
Source:
http://www.slipperybrick.com/2008/05/2400-led-pong-table-for-gaming-dining/