Zune function as an external USB drive? Fine. We'll make it function as an external USB drive our damn selves. Looks like the fine chaps over at ZuneBoards have divined a method to make the non-MSC non-MTP Zune open the hell up and act like a real drive for god's sake. They haven't yet posted the tutorial on how to do it (so as far as we know this might be a hope-shattering Thanksgiving-day hoax) but we're kind of thinking those guys wouldn't let us all down like that, so watch out here for further developments.
[Thanks, Aaron R]