Sony has launched the official Twitch app for PS4, allowing users to watch all live streams rather than those that are just specific to PlayStation.
Xbox One owners already have a twitch app and the PS4 version is very similar to this. Of course you've always been able to watch live streams from Twitch and UStream through Live with PlayStation, however now you can even watch live Xbox games, PC and Wii U if you like through the new App.
Live with PlayStation will still remain available too of course.
The app is available now on the North American PSN, and will hit other stores later today.