Super-fast Internet connections let people watch movies and send huge amounts of information at the speed of light.
VOA: special.2010.09.01
Better to have that piece of work done locally by all the endpoints and have them send a light information stream to the center: a single map coordinate rather than a bunch of tower coordinates and distance measurements.
Another company is considering using stickers at an upcoming conference, and with Bluetooth transmitters placed around a venue, they can track the precise location of attendee badges (and the individuals wearing them), and even send "pages" by triggering the beeper and light.