I don't know about elsewhere in the world, but tools like Google Earth have been around for years on the web. I've used many of them, in fun of course, just to see my house and places I know..
Biggest gripe with GE is that it has a tilt feature, so you can look down at an angle at the area you wish to see.. Gripe is that is still uses flat images, so, for instance, if you look at Cleveland, OH, you won't see skyscrapers (tall buildings). Considering most sat. pics are taken at an angle anyway, not directly overhead, was kind of bummed.. Give us something to look forward to in the future though!