Very, very cool project! I think I actually prefer this streetview approach to the floating noclip approach, because a map + streetview that works like google maps cements the feeling that the game world is as real as my city -- here's the map in my web browser, no need to run a video game!

To your knowledge, are there any special tricks to store many panorama images so you could feasibly capture entire paths continuously through the map, or even entire maps for smaller games?