http://bloodgutsandglory.wordpress.com/
So, the guy that brought us Dark Dungeons (a retro-clone of the Classic D&D Rules Cyclopedia) is working on another project to mash the 3rd Edition OGL with a certain other old school fantasy game that is known to be the master of charts...
I think I even tried my hand at doing something like this back in the day, but it never went anywhere.
I'll be curious to see how he mashes those two games together.