TechAutos has brought Google Maps to Windows Phone 7 via the ChevronWP7 unlocker. The mobile app called "TAMaps," "taps into the Google Maps API to deliver basic functionality such as scrolling and zooming and location tracking via GPS, but lacks other features like address and POI searches, the ability to calculate directions, and support for bookmarking favorite places."
The group claims that the maps feature is only there to hold users over until Google releases its own official map application. For those looking to install the app, must use the ChevronWP7 tool or be a developer.
More Info Installation & Download: TechAutos Maps