Bringing this one up again, as a new official video of the Game Concepts has been released at Matrix (Dave Arjuna the lead programmer narrates).
30mins/100+ MB
http://www.matrixgames.com/forums/tm...&key=�
There will be more official 'Dave Arjuna' tutorial videos, a demo, and the release date looks pretty close, given these are the 'final' versions of the video documentation...
Personally I'd skip the other non-official recent 'video AAR' though - it doesn't show the strengths of the system very well as you can't get "close enough" to see what is going on...