Make a Windows UWP app for desktop, mobile and Xbox
It would be better to have a UWP beam app for desktop, mobile and Xbox. Android and iOS already have their apps, and it's more convenient to watch streams on apps rather than the browser. If possible, you could release an API with which developers can make third party apps for your service!
Bob YAMADA commented
Now Beam changes to Mixer and mobile streaming app was announced. But it is only for iOS and andoroid... I wonder why MS ignore thierr own device. Please bring it to Windows 10 mobile!