Windows 10 apps are starting to appear on Xbox One.

The giant company at Redmond is starting to enable UWP apps on their console. A few example of that is the MSN weather app, and Netflix are both installable running the latest preview build. Groove Music has also been updated with background music support.
Since it’s universal apps, the devs can adapt their applications to fit larger TVs as most gamers usually use on Xbox One, and as well the controller or Kinect input. The Anniversary Update is out in 2 weeks containing a lot of new features, and tweaks to the OS.
Source: The Verge