God this is such interesting stuff. How do we still not have a fully featured open source NFL stats-rosters-game charting API? Who wouldn't want to contribute to that project?

Other than cool data visualization stuff, the obvious implication is the potential to devise a profitable system to pick games against the spread. The guys at Football Outsiders have done a decent job at it and made a proprietary algorithm that picked games at 58% this year ( which is over the threshold you need to be profitable in Vegas ). But even those guys are still having some trouble getting access to and aggregating the data in a usable format.

I really want to sit down and start playing around with some of this data so I appreciate you putting this together for everyone. The NFL needs an open source API and this is definitely a step in the right direction.