There has been a lot of talk lately about the integration of virtual worlds with the internet. The fact the Google likes to have it's fingers in all honey pots does not surprise me.
While I enjoy Second Life as a creative platform and sometimes virtual vacation it is in need of a more stable and powerful system to work under. Perhaps Google and Linden Labs (the creators of Second Life) could work together. Google would be able to supply a much needed power boost to the relatively small Linden Labs.

From this clip, it sounds like they are may be working with the Artificial Intelligence researchers at the University of Arizona.