I finally got my hands on the bonus chapter of Red Riding Hood. Even though it's not released here in Australia until March 25, I discovered it's actually already available to download on the US site. I can't believe I didn't think of it earlier!
Anyway, aside from the fact that I'm still mad about the whole gimmick, I was pretty satisfied with the ending. There were a few things that were left unexplained, but at least the major thing was. Yep, we finally get to find out who the Wolf is. It was someone I suspected - but then, I suspected just about every character so that's no big revelation. The very last page seems to be setting up for a sequel, but at least the first story is mostly resolved - even if it is in a bonus chapter online. If it had've been attached to the original book, I probably would have given it 3/5. But it wasn't. So my original opinion still stands.
Related: I've had this song in my head all weekend.