Sony has unleashed its PS4 2.0 firmware update, bringing with it a number of new features including YouTube uploading, themes, USB music playback, and improvements to voice command and library organisation, and the big one: Share Play. This is a new feature that lets two people game together over the internet, only requiring one of those people to own the game. There are two ways to use Share Play, one offering more versatility than the other. If you own the copy of the game, you can use Share Play to allow a friend to see exactly what you can see while playing a game on your PS4. You can even pass over the control to let that friend play the game via the internet. The second option is to utilise the feature to play a co-op game together without needing to be in the same room, house, or country for that matter, and again without both requiring a copy of the game. Source: ps3news