Lately there’s been a bit of hype around Virtual GPS for cell phones. Traditional GPS requires a GPS receiver that communicates with at least two GPS satellites, triangulating to determine where on the surface of the earth you are.
However, software-based GPS solutions, such as those from Navizon, use the signals from cell phone towers, (which are basically everywhere in North America and all over the rest of the world too these days), known WiFi hotspots, and real GPS users to simulate the location-finding capabilities of a real GPS.
If this really works as well as a real GPS, I’ll be surprised; personally, I think it’s more likely that the accuracy of the Virtual GPS will be less than optimal. Oh well, it’s probably a lot more economical.
