The official PlayStation Magazine has reported that the PlayStation 4 will allow users to access their digital games library on any console.
This is according to Sony engineer Neil Brown, who stated that "you can visit your friend's house you can log into your account and play any game from your digital library, which is good."
This will all be done through a user's PlayStation Network account, allowing their library to be accessible from any PS4 they log into. While he did not specify, it would seem likely that this will only work for games purchased through PSN, and will not be extended to boxed retail copies.
Brown also adds that downloading these games won't take too long, as the PlayStation 4 utilizes a "Play As You Download" feature that will let you play through pieces of the game as the next section downloads in the background.
"This makes a digital library a practical option in the real world," said Brown.
Brown did not mention if save and data files would also transferred over.
Microsoft meanwhile has a similar feature in place on the Xbox One. Prior to the reversal of their online policies, the company had confirmed that you would be able to play your games on any system, as long as you login with your own Xbox Live account.
However, some gamers have been wondering whether this feature had been cut alongside the family share plan. Microsoft has not made an official comment on the issue, which may indicate that they have not made up their minds on the issue.
Both the PlayStation 4 and Xbox One will launch later this year. The Xbox has been confirmed for a November release window. Sony's console will launch at $399, while Microsoft's will be priced at $499.