I just saw your message, but since I'm travelling now this message I can't do any work on the code right now myself.
I've been working on a reporting system for the current multiple choice module to display the selections for each student so that it can be used for surveys.
I don't think that a separate module is required. What we need (and there has been some discussion of this) is a quiz/survey choice when creating quizzes that will automatically toggle any mentions of grading off. We then need a method of displaying the responses, and this I have pretty complete, but cqn't work on further until I return to Melbourne on Sept. 21.
I posted something earlier on this. Put "quiz report" into the search window to pull it up.
--Tom Robb, currently in Istanbul, Turkey