I have gone through the appeals thing they have, and also emailed the people who I have any contact with at youtube, but so far haven't heard back (well it was only a few moments ago).
The FAQ on adsense is like 'you did something, but we aren't at liberty to say what it was.' Google is like big brother or something! I haven't even asked people to click my ads in emails or anything! WHAT DO YOU WANT FROM ME GOOGLE??!?
I couldn't even fill out the appeals thing properly because it asks for some code which I don't know how to get. I imagine it would be n my adsense account, but I don't have access to that, obviously.
~edit~ I did find some sort of code, so I did the form again. Who knows what effect it may have. It is in the great google-overlord machine now.