twitter/bootstrap — comment on commit 5ad5dde1e24f668cf9b720dd59fc2a7d4808c0b3
File:  line 0
By jonschlinkert:

@fat that's pretty awesome, I like you're thinking. Others may have reason to be more concerned about the extra LESS, but we compile on the fly during development, so no real hit to us. It's a big win that it doesn't require a special build process though! I need to see what you mean about not requiring extra markup...

Whatever direction you go with it I really appreciate you giving it so much thought.