Very good article (http://www.fantasyflightgames.com/edge_news.asp?eidn=2384) on the FFG site...
And the second part (http://www.fantasyflightgames.com/edge_news.asp?eidn=2402)
Another article in the series, this time on the Curve (http://www.fantasyflightgames.com/edge_news.asp?eidn=2481)