FCC honcho Julius Genachowski has come out in favor of usage-based pricing for your broadband. At this year's Cable Show, he said that he supported the sort of usage caps that Comcast adopted last week and hoped that such plans would reduce costs for those who use less internet. Comcast's new pricing structure offers a 300GB monthly cap, after which point it'll charge users $10 for every extra 50GB used. We're not sure how this'll play out, but we suspect anyone with a Netflix or Hulu addiction might feel less than pleased this morning.