Hey, this is old news, but here goes anyway?
Remember Apocalypse D&D? That's my Apocalypse World hacked version of OD&D, designed to be played with whatever version of the OD&D rules you happen to have lying around. We played it a lot at Go Play NW last year. It was fun!
Sage LaTorra grabbed the thing and is turning it into a fully fledged game called Dungeon World. It has a complete OD&D aesthetic with some rules streamlining along the lines of Apocalypse World. It's pretty awesome and well worth checking out.