The best place in the world to receive new details related to Playstation 4 is Shuhei Yoshida Twitter.
This time around he shared details regarding how remote play feature will work and whether players will have to set up their PS4 console to use the feature as in the case in PS3.
— Shuhei Yoshida (@yosp) September 28, 2013
In addition to this, Yoshida also unveiled details about remote play with Knack, when playing remotely via the PS Vita or Vita TV, a second player can just sit on the couch and play co-op with us on the PS4.
— Shuhei Yoshida (@yosp) September 21, 2013