I was thinking about this, but it I find it really difficult. For example, I can't think of a goot equivalent of "starred" in German, it just doesn't exist. One would probably have to search through a lot of german applications to look what they are using. And as I am using the desktop version in English and am quite happy with it, I would prefer not to have two different languages. It is just easier, quicker, more intuitive if I don't have to switch languages. (Of course, generally speaking I appreciate the availability of a German version very much!)