... how long did you let it run? The results in the presentation did not turn out very well.
You can see my videos at: http://www.youtube.com/watch?v=S1ZPSbImvFE http://www.youtube.com/watch?v=-_VFZ_ON0A8 http://www.youtube.com/watch?v=VbyQomrJSeU
Due to time constraints (I underestimated the time it would take to write a fast bitmap/polygon library) I only let those simulations run for ~1 hr each.