ArtofAngels on 02 March 2008
I can't find the graph, I know where it is it's just far too deep to dish out www.n4g.com and click 'DEV' and search through the hundreds of articles.
Here's some info that might answer some questions though, it's 5 pages long:
http://www.next-gen.biz/index.php?option=com_content&task=view&id=6424&Itemid=2
