Just think of how useful something like this could be when you roll out a new site. Maybe you think it’s perfect when you roll it out, but then you find people constantly hovering over an item that they shouldn’t be hovering over. Maybe that should indicate to you that you need to change the color of the item, or possibly change the color/look of your links, in order to better indicate that the “consistently hovered” item is not a link. Those are the types of things you rarely think heavily about when designing a Web site, and really have no way to test without soliciting feedback.

I’m sure there are a lot of other fantastic reasons to implement this type of thing, as well.

http://www.webanalysts.info/webanalytics/qa-with-joshua-gross-founder-of-tapefailure/

I’m curious to find out which service (Tapefailure, RobotReplay or ClickTale) will have the most users in a year from now. And which service will have evolved the most.