The source also suggests that “you'll also be able to control the PS4 remotely from your tablet or smartphone. You'll be able to use a mobile device to chat with your PS4 friends or buy games which are then automatically downloaded to your machine.” The second half of that rumor seems to be in line with Sony’s recent changes to the accessibility of the PlayStation Store, which expanded to browsers last month.
Finally, the source suggests “that every PS4 will come with a PlayStation Eye; that a new spectating feature will let you watch other friends play games from your console's dashboard, even when you don't own the game they're playing; and that the console will support local network play via Vita.”
Yesterday, rumors suggested that the next PlayStation will be heavily integrated with social networks and new domain registrations earlier today pointed to a service called PlayStation Cloud. For now, it’s unclear what Sony is planning for its next console, but we should be finding out much more information tomorrow.