emacs cheat sheets

[rustom]

There is this little 'gem' called cheat which gives mini-man pages of
some oft-used commands.
Yes, it has a strong ruby/rails bias (and corresponding anti-python
prejudice) but it has some generally useful stuff -- git, svn, ln,
ls....

Then I just found that there's an emacs command for it as well :
http://sami.samhuri.net/tags/cheat

So was just wondering if theres any emacs-oriented server for cheat-
sheets maybe to complement the emacs-wiki?