Check this out: Lifehacker found some free cheat sheets for many office products (and other apps) at http://lifehacker.com/5360395/customguide-provides-quick+reference-sheets-for-microsoft-apple-and-adobe-products.
The reason this jumped out at me was the image they used in their preview: OneNote 2007!
Nice! I already took a look at it and it looks very good. Be sure to check it out.
Questions, comments, concerns and criticisms always welcome,John