This is very interesting and the first aspect what stood out to me is the possibility of such a tool being used to enable a form of ongoing user sanitation with regards to security. By that I mean opens up the possibility to collect statistics upon how a user does various tasks and qith that finger print approach enable the ability to highlight acceptions to how the user works. This could in essence provide a form of ongoing verification that the user is who they say they are. That is certainly one possibility this type of approach opens up. The ability to do ongoing user biometrics.