first I'd like to thank for the OOCSS project and csslint for providing new ideas and concepts to me.
While developing my CMS called Redaxscript and working at offices related projects, I extended the OOCSS
grid system and like to present my approach to the public.
See the jsfiddle: http://jsfiddle.net/nDch7/
or Redaxscript (elements) preview: http://demo.redaxscript.com/preview
(yes, it is using other class names)
What happened to the original grid?
I was unhappy with the .lastUnit and completly removed it with a simple trick.
Predefined space classes, that will help you to create nested layouts as needed.
I dropped IE6 support, sorry :-)
Take a look at the code and tell me what you think.