Google says "hell is freezing over"

In a tweet by Google CEO, Eric Schmidt, we're instructed to watch out for something during the 3rd quarter of the big game tomorrow.

Google hasn't ever spent much money on marketing their own company or products -- but is that about to change? It will be interesting to see what he's referring to when he says:

Can't wait to watch the Superbowl tomorrow. Be sure to watch the ads in the 3rd quarter (someone said "Hell has indeed frozen over.") -- Eric Schmidt