WP7ResxLocGenerator is a simple tool targeted at wp7 projects to create language resource files from a source language
To get started you will need to get yourself a Google API code and edit GoogleApiCode.cs and enter it in the AppId field. This can be source from google api console https://code.google.com/apis/console, look for translate api.
To build the sample wp7 app add "..\..\..\WP7Sample\Resources\resource.resx" to the command line arguments under debug->start options
This is organially a fork from another project i downloaded from codeplex years ago and recently updated to work with wp7 so most of the credit goes to the orginal author however im unable to find the orignal project now sorry.