I mean come on, who is this guy in the video? Does he work for Apple? No because he would be fired and sued if it was true first of all. Who are these mysterious "sources" he speaks of?
Kevin Rose knows a lot of people from Apple (translation: drinking buddies). That's where he gets his info, friends (probably drunk at the time) tell him stuff and he leaks it secondhand without revealing who said it. He's been doing this all the way back since he was on The Screen Savers.