god damn, you guys are so whiney. It's a promo. Nobody ever complained about the sam and max stuff only being for people who bought sam and max, or the bill hat only being for people who preordered l4d2. And nobody complains about the fact you couldn't have gotten the silver or gold medals on a mac without a 3rd party program.
but now that a mac user get's a privilege you don't, it's a problem.