If you’ve got your hands on a WP7 phone, you might be missing an official Maps application from Google. Don’t worry though, as in the meantime you can try out TechAuto Maps, a basic Google Maps client for WP7.
Developed by XDA forum member amb9800, TA Maps is meant as a temporary solution until Google releases an official application. The dev admits the feature set has a long way to go, but that the app might be nonetheless useful for places where Bing’s map data is not the greatest.
TA Maps is only available as a side-loaded app XAP file so your phone will need to be developer-unlocked.
For more information and to download the XAP file, head on over to the application thread._________