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. You'd also be able to easily jump from the in-car navigation to a navigation app on your ph
