I'd agree with your gut. I think the limiting factor is a common/shared platform for historic data aggregation and dissemination of possible sites to visit or actions to take for example.
That's a great point. It's very sensitive data, so I'm not quite sure if anyone will want to participate. I'm currently building a chrome extension that will store all of my mouse movements and keystrokes to a database. After a while, I'll see if I can create some useful suggestions and if so, allow other people try it out.
I hope you let us know how that turns out. If its anything like my patterns, it will include opening Gmail, HN, and Weather.gov in the morning. As an example, Chrome should figure that out and open them when I start Chrome at 6am every morning.