Sony's R&D Senior Team Leader Neil Brown has confirmed through the UK Official PlayStation magazinewebsite that PS4 users will be able to download their digital games on to any other PS4.
As long as the users are logged into their account, they have "a digital [game] library, a practical option in the real world."
Brown states, "You can visit your friends house you can log into your account and play any game from your digital library, which is good. But how useful is that if it takes half a day to download the game you want to play?"
Due to the 'play as you download', gamers will no longer have to wait for the entire game to download. The game will download in sections and once the first part of the section is finished, users can immediately start playing while the rest of the game downloads.
"With Play As You Download you get much quicker access to at least the first section of the game so you can start playing quicker. So this makes a digital library a practical option in the real world," he says