The Street sees trouble here for the cellulartower companies, and for obvious reason: it would mean one less company looking for places to add infrastructure.
Skyhook has amassed a database of 50 billion scanned records of Wi-Fi, cellulartower and GPS signals--a "map" of locations that captures 80% of the U.S. population.
When it comes time to send them off to another destination, he goes back to his Palm VII and a cellulartower detects his location and directs him to the nearest dropoff.