maquiladora
Member
"We actually don't know the launch date," a source who is currently developing a launch title for the PS4 told me. "That's because the [PS4] launch date is not set in stone yet.
"I'm assuming it's before Black Friday," he said. "I'd be surprised if it's not by then, but that's just me. That's when we're shooting for."
As for why Sony has yet to commit to a date, the developer guessed that "they are probably just trying to see and make sure they launch with enough hardware, and get all the logistics taken care of."
http://www.gamezone.com/news/2013/06/12/source-ps4-release-date-not-set-in-stone-yet