I created http://observer.no.de/ as solo entry for NodeKnockout. It allows you to follow your site's users in real time (or watch a automatically generated recording of it). You can see the mouse movements, scrolls, clicks , JavaScript errors and much more (if you are following them in real time you can also start chat conversation with them :))
Wow, I didn't know that this was a solo entry. Planning on throwing my vote in sometime tonight, but based on what I saw with the demo it looked awesome. Great entry, hope for the best on the results.
See demo: http://observer.no.de/demo Votes: http://nodeknockout.com/teams/speedo
<3 It was an epic competition