3D navigation system for cellphones

Finding your way around in Japan can be next to impossible, in large part because they don't number their streets in the same way we do here. Consequently GPS navigation systems,
especially built-into cellphones, are massively popular (before that faxing maps was huge and before that we don't know what people did). A couple of Japanese firms, Index and Jicoux, have a new navigation application for cellphones there that can show on a radar-type display the location of friends, train and bus stations, etc. on a map.
What's best about this is that when you get to within 50 meters of you're going, the cellphone's display switches from a compass pointer to an actual 3D map of the area to make it easiest to find your destination.

[Thanks, Mike]