One of the frustrations of OOCSS concepts is the amount of presentational classes that need to be created and the method of applying them to the DOM.
Sass has looked to address this issue first with Mixins, then Extends, each with their own issues of duplicated code or creation of unnecessary code.
Sass 3.2 introduces the concept of 'silent classes' whereas standardized presentational classes can be created, but are silent until extended in a class used by the application.
Interested in seeing this presentation live? Check out http://www.youtube.com/watch?v=Ckh_09hi94w&feature=youtu.be