Filed under: Features, GPSEach week Ross Rubin contributes Switched On, a column about technology, multimedia, and digital entertainment.
As demonstrated by last year's purchases of map providers Navteq and Tele Atlas, companies are betting big on the future of location-based services. Knowing, processing, and integrating the location of people and things can be a valuable bridge between the digital and physical worlds, but today most of the activity is in the simple
