Awesome. I've been wanting to see this in analytics for a long time. Not because I would use it, but because I thought it made the most sense. I came across this article on HN a while back that seems to hint at the same thing: http://www.contrast.ie/blog/the-future-of-analytics-products...
I believed it was such a necessity that I worked on building a MVP for about a year, but then gave it up a few months ago. The project was way outside my technical ability even after all that I learned and I had absolutely no experience with analytics in general. It was a bad decision to work on it for any period of time, let alone a year. Especially since I had other ideas that I was better suited to build and believed more in.
Now all that's left of the project is a demo video I put together for a job application. This isn't really what I had in mind then, but what the hell...
Show HN: Real-time, visual, click-path, analytics (pathtrends.com) http://vimeo.com/27327367