I also think it's just a rumor, cause they said the same thing about the PS3, and that didn't come to pass either. Although I see the reason why these rumors would spread. The video game industry has been trying to get gamers to buy a new game over a used game for years. Bioware was on the right track, but then they made the "exclusive" DLC for Dragon Age available to everyone. If this decision were to be made by Microsoft, it would only be there to appease third-party developers, not gamers. But then again, if nobody buys the Xbox 720 because of this decision, what third-party developer would really care about a system that won't sell their product. There's a lot of speculation to be had here.