The result of this translation is quite a bit too formal. "Du bist süß" is less formal.

There's also Translated Search:

http://www.google.com/search?hl=en&tbo=1&tbs=clir:1&...

Thanks guys, I'm aware of my options. :P

I wonder if there's been a noticeable spike in search terms related to that ad, e.g. people searching for how to say "you are cute" in French.

Not noticeable enough to show up on Trends:

http://www.google.com/trends/hottrends?sa=X

Though everything else related to the Superbowl has managed to show up. People continue to be enamored of The Who, and the Call Barney Stinson guy seems to have gotten his money's worth.