About Google translate ... nooo!
1. Its designed to translate all the text, for translating po files it must be quite tweaked with code.
2. It translates funny - its not acceptable solution for culture reference rich content like game text. Direct translation could sound really weird.
3. It still has no support for smaller languages like Estonian.
I had a look on Estonian translation, current version is translated by quite unliterate person. Its full of obvious errors and also childish examples. I have made some work on this translation, but my time is also quite limited and I don't know how to submit changes.