There is no recent rumor about anti-used-games being implemented in PS4 while EDGE rumor says that it will be in Microsoft's next console. Sony has researched and applied for a patent regarding technology that could be used to do it, but nothing says that it will be implemented. Patents are submitted every waking moment, but only a fraction of them ever are used.
So because the rumor for X720 is newer that gives it more credibility somehow? If that were true why hasn't Microsoft submitted a similar patent?