"Sony has already outlined some of the key services the PS4 offers, but I’ll give a quick recap. At all times, at no cost to the developer, the PS4 records recent gameplay enabling frictionless sharing of video clips and screenshots, so you never miss a moment.
Passive recording means we don’t have to think about it. The serendipity of pulling off the impossible and having it on film is magic. So when we have that amazing moment we can instantly share it with our friends. Not on some restrictive closed ecosystem but with the entire web using open standards.
One of the main areas that will be disrupted is exposing new content and how you learn about brilliant new games."...
..."The first impulse of many will be spammy Facebook-like interactions, but it can be so much more. This is not only limited to real-time streams but asynchronous services, websites, mobile services and the PlayStation dashboard. Discover your friend’s dying message on a wall, or instead an ammo cache they left for you. Beyond simple boosts this extends to story moments, what if the old sailor is your friend and the dire warning of sea monsters was voiced by her.
Whether from her PS4, phone, Vita, or desktop we can make this your story with best mates. We can extend this to the crowd, you could be broadcasting online while you creep through a haunted mansion fearing for your life, your viewers guiding you through the horror with text messages on your character’s phone while they look at a map of the mansion online."
TL,DR: Perhaps user generated content through increased social interactivity supported by an built-in ecosystem should not be underestimated in its impact.
STILL TL,DR: PS4 is covered in the sweet awesomesauce of potential.
http://www.altdevblogaday.com/2013/06/14/true-magic-of-next-gen/
Video Link for those who haven't seen the interface: http://www.youtube.com/watch?feature=player_embedded&v=1OegYm1dM9g
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