Even in the documentation department?
Packages/Default/*.sublime-settings
All default keyboard shortcuts are in: Packages/Default/*.sublime-keymap
So, yes, there is plenty of documentation, but not on the website ;).Vim and BBEdit have the best documentation:
http://www.barebones.com/support/bbedit/manual.html
http://www.truth.sk/vim/vimbook-OPL.pdf
TextMate's manual isn't too bad: