Just a quick note to let people know that I have been making some big updates to the Application Developer Guide for Movable Type.
What is the App Dev Guide? Specifically this document is an extension to Hacking Movable Type, a guide that focuses primarily on the basics of building plugins for Movable Type. This guide on the other hand focuses more on the front end of Movable Type and how you can extend it by building new screens, etc.
I would love for people to take a look at the table of contents for the App Dev Guide and let me know what you think. Am I missing any major topics or areas of interest?

Are you referring to the documentation found at this url?
http://www.movabletype.org/documentation/developer/
And here:
It's really starting to look good. Thanks a lot for getting some formal documentation on mtapp:listing started!!
You are quite welcome. I know this will sound weird, but I had a need to refer back to my own documentation and it was so refreshing to just do a little cut and paste and have something working in no time. Hopefully we can make it even easier. Take a look at this for example:
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