An Emacs cheatsheet as a mindmap

I have been using Emacs for some time now. It has a very steep learning curve, but its power and elegance make it my editor of choice for just about everything. So, inspired by this article, I decided to create my own Emacs cheatsheet. There are many Emacs cheatsheets, but all of them use a tabular format that is not, in my noob opinion, the best way to convey such information: you can interpret the Emacs commands as a tree-like keystroke structure and many important commands use two or more steps.

I started a mind-map for the keystroke trees with the commands I use the most (and some of the ones I find the most amusing). The plan is to make a navigable cheat sheet like the Mercurial and Git ones you can get here and here, plus some tips on what to add to your ~/emacs.d/init.el file.

You can get the very, very early version of the mind-map (in Freemind format) here or just look into the image that follows.

All the heavy magic is also missing, like the "smart paste" Marco Baringer does about 1:45 into the What is Ajax screencast that relates to the David Crane's Ajax in Action book (that I still don't know how is done).

I would appreciate any advice from Emacs veterans and newbies alike, so, feel free to comment.