The new Google service extend the GoogleMaps features and provide 360 view of streets. To do that, they just take 360 photo each 100 meter and linked alls in a little Flash application. It’s really interesting, it’s like if you are in the town. But there is a little problem with the image rights, some people may don’t want to be seen in this tool. Google have to take photos by previously making the street empty :), there’s a lot of work to do. Anyway i invite you to take a look a this : go to http://maps.google.com and clic Street View.