Thank you for the awesome plugin, it's just what I was looking for.
The one thing I'm finding to be a problem, however, is when using textarea tags in the html section. The main reason I wanted this plugin was because I have a couple pages where I have copy/paste codes and I wanted to make sure the pages didn't get re-formatted by WordPress.
So when I add in a < textarea >some text</ textarea > code, what happens i that everything after (and including) the closing textarea tag doesn't show up in the edit area. It dosn't look like it's lost, but it shows up as regular text under the edit area.
I don't know how/why, but it looks to me like my closing textarea tag is actually closing the main edit area instead.
It'd be great to get that smoothed out, but otherwise, awesome and very useful plugin!