Yikes, so I've just stumbled across this and a couple of points to note: Firstly I wrote it over a year ago, secondly, I've written an awful lot more about it since then. In particular check out my most recent article - http://www.altdevblogaday.com/2012/08/27/the-spector-of-game... and the video of my session from Casual Connect Seattle a couple of months ago - http://casualconnect.org/lectures/2012-igda-lectures/skynet-...