Geosense is designed to use a hybrid mix of geolocation service providers and geolocation methods to pinpoint the most accurate location information possible

Geosense is a Windows Sensor that provides the Location and Sensors platform in Windows 7 with accurate and reasonably ubiquitous positioning information without requiring or the assistance of GPS hardware, enabling more practical location-based applications and scenarios on Windows 7.
Change log

-Fixed up worker loop, resolving a long-standing issue in which the sensor would get your location at init -- once -- and never update again
More info: Geosense For Windows
Download: Geosense 1.2 x86, Geosense 1.2 x64