Thanks to XDA member Gaploid , WP7 users have, well as the title states, JustAnotherMaps application. The app is very clean, simple, and powerful. The app is based on OpenStreetMaps maps data. As quoted from the OP, the app supports the following features:
This app supports these features:
• GPS/Cellular/Wi-Fi location.
The main benefit is that OpenStreetMaps have a better map precision and geographical coverage especially in Western Europe, Asia and etc.
In upcoming versions, the app will support running under the lockscreen and locate me features. This app is coming along nicely and we encourage you to checkout the discussion thread and download the app on the Windows Phone Marketplace._________