Nothing new
Eeeehmm, this is nothing new, Google uses WiFi access points to locate you on Google maps when the device you're using has no GPS or you're inside a building.
To do this they need a database relating each access point SSID to it's approximate GPS coordinates.
Companies like Navizon collect this information too and then sell software based on the database they create, or sell the info to Microsoft and Yahoo.
Biting the hand that feeds IT
