When will Ubuntu One be available in German and other languages?

There are no plans to internationalise the website at the moment. Because the website contains a lot of commercial information, we can't have it translated by the community like the client. Getting professional translations for dozens of languages is a huge undertaking (both in cost and effort). We do, care about all users, but the translation of the website has not yet become a priority for us. When it is, I'll make sure we announce it properly.