Long time back I downloaded a software called "Accelerator & Shortcut Show". It seemed to do the same thing as the proposed Cheat Sheeter (maybe not so ambitious). I didn't use the software much. I could not find it in the website I downloaded earlier from (http://www.thinkred.com
), maybe a Google search might yield something. I still got the software, if you could not download it from anywhere please send me a message and I will email it to you.