Greenpeace international is using the survey system within it's user-register system (still in need of cleaning up), for collecting data about the users when they register to a mailing list (but could be used anywhere). For this you can use the predefined database questions, that will store the result not only in the survey system but also in the database table (e.g for changing first_name and last_name on the same page as state, gender, you name it).
The assessment project will keep this ability of the current (complex/contrib) survey system to act as a collection point of user data.
As for internationalization and bug-fixes. I internationalized the /contrib version (well, most of it), provided upgrade scripts (that someone should test please) and am curious if other people are using it as well.
