[eluser]Phil Sturgeon[/eluser]
Language packs are of course welcome. French and German would be brilliant additions to the codebase.
If you know Git and would be able to check out the code that really would be the easiest method. It also means you can add translations on an ongoing basis which if you were up for it would be ideal.
The main problem at the moment is people add language packs then when I want to work on a new feature I have to make it all english again >.<