ClickTale shows you the full story: every mouse movement, every click and every scrolling action. By using ClickTale you will gain insights that will improve your website’s usability, enhance navigation, and increase effectiveness.

http://www.clicktale.com/

Something that looks scarily like my Open Source JavaScript Macro Recorder but with a snazzy front and back end.

Something like this would probably make a good proof of concept application for my XML Storage server so I may build a white screen version of this in the near future as a test application.