[talk-au] BMW augmenting gps with inertial navigation

[Liz]

On Wed, 7 Jul 2010, John Smith wrote:
> "BMW has been working on augmenting GPS navigation for some time now,
> and it took another big step forward in recent weeks with the
> announcement of its Pathfinder "microNavigation" system. As the name
> suggests, that would supplement your basic navigation system with maps
> and directions for areas not covered by GPS -- a parking lot, for
> instance -- and it could be continually updated on an as-needed basis,
> with users able to download so-called microMaps for a specific area
> before they go on a trip."
> 
> http://www.engadget.com/2010/07/06/bmws-pathfinder-micronavigation-system-p
> romises-to-augment-gp/
> 

and from where will they get the information for places out of the way?