Sony touts that the PS4 can do a lot of new things. Here's a breakdown of what's been revealed at PlayStation Meeting 2013.
Shared Game Experiences
Social interaction is central to PS4 experiences, so new features were built into the actual foundation of the system's hardware architecture. PS4 provides dedicated, "always on" video compression and decompression systems that enables seamless uploading of gameplay. For the first time ever, gamers can share their epic triumphs with the press of a button. Gamers simply hit the "SHARE button" on the controller, scan through the last few minutes of gameplay, tag it and return to the game—the video uploads as the gamer plays. Gamers can share their images and videos to their friends on social networking services such as Facebook.
PS4 also enhances social spectating by enabling gamers to broadcast their gameplay in real-time to friends using live internet streaming services such as Ustream. During live broadcasts, friends can make comments on the streamed gameplay and, if a gamer gets stuck on a challenging level, friends can also join the game in completely new ways. For example, friends can offer health potions or special weapons when a player needs them most during actual gameplay.
Furthermore, users can connect their Facebook account with Sony Entertainment Network account. Through PS4, users are able to deepen their connections through co-op play or "cross-game chat".