it could be really useful to have an interface where everyone can query all the po's of a predefined language (or maybe more than one to compare them)

it will not only be useful to search how a language has translated "foo", furthermore it will makes sense to standardize all the translations that involves "foo", or when you want to change in all po's one word, with this interface you can query all the po's that contains that word

and obviously, someone else with find new ways to use it