Visitors to the Montreal Expo '67 were probably led to believe something like Windows Live Local would be up and running by, oh around 1978. But the service, which provides a virtual driver's eye perspective of city maps, is just recently in Beta testing. Only parts of Seattle and San Francisco are covered, and that by way of a ginormous collection of digicam photos (a la Google Maps). Once the novelty wears off, in, say, 1996, it's basically unusable, unless you just want to see if your own house is on there, or reeinact the car chase in "Bullitt" as a flip book with about 10,000 pages missing.
Windows Live Local Virtual Drive-Thru [Gridskipper]
Mapping the Rendezvous [internal]