OK, it's no more summer now, but the site "Summer of Green" can be found on services.google.com/... , so it should probably justify to spend a few minutes for updating the map with the v2 of the API.
Then we could have the infoWindows :)

http://static.flickr.com/137/319610034_6d63fbef15.jpg

http://services.google.com/earth/green/gg_interior_sf.html?3