Skyhook Expands Wi-Fi Positioning to Cell, GPS
...cell tower signals for better location: The pitch at Skyhook Wireless is that despite its accuracy, satellite-based GPS remains relatively expensive, that it's slow to get a fix when it powers up, and that it's not accurate enough in the middle of cities. Their XPS 2.0 system leverages GPS with the advantages of Skyhook's Wi-Fi signal...
