It seems the partnership between Sony and Ustream is now over. Sony has announced that starting August 1st, PlayStation 4 players will now only be able to live stream games on Twitch, YouTube, and DailyMotion. Aside from that, you won’t be able to view Ustream videos from the “Live from PlayStation” portal on the console, mobile PS app, and PS Vita. It wasn’t explicitly specified why the support has ended. But Ustream hasn’t really been making news when it comes to game live streaming. The last we heard from them was when they were bought by IBM to power enterprise broadcast services.
Source: Engadget