It probably needed to, or there would've been a full-scale gamer revolt.
Speaking to Eurogamer , Sony Worldwide Studios president Shuhei Yoshida has confirmed that the recently revealed PlayStation 4 will play used games. That's a relief.
There had been rumors that next-gen consoles would block pre-owned software, but Yoshida said that in regards to the consumer's expectation when they purchase a physical disc, "they want to use it everywhere, right?" Bet GameStop is breathing a little easier now, as a fair portion of their business is pre-owned software; it accounts for over $1 billion in revenue every year. And gamers are probably happy about this as well, although there's bound to be continued debate on the subject.
Oh, and by the way, the reason Sony didn't show off the actual PS4 console last night is simply because as Yoshida just confirmed, the hardware design isn't finalized. Well, hurry up…we wanna see it!