Slightly off-topic, but David Silver did work on this project and discusses it briefly in his really great reinforcement learning course [0]. It's worth checking out if anyone is looking for a well-paced, well-explained introduction to some of the basic reinforcement learning algorithms and theory.
[0] http://www0.cs.ucl.ac.uk/staff/d.silver/web/Teaching.html
Edit: The slides are fine but the gem is the YouTube lectures playlist!