Last week, Microsoft lit up the Console Streaming feature for Xbox Insiders on the Preview Alpha ring. The testing pool is expanding pretty quickly though, as the company announced today that anyone in the Delta ring can now check it out.
Console Streaming is the second piece of Microsoft's Project xCloud game streaming service. The first piece is to actually stream your games from the cloud. With Console Streaming, you can actually use your own Xbox One as the game server.
You'll need an Android device running Android 6.0 or higher, a Bluetooth-enabled Xbox Wireless Controller, and Microsoft suggests using a mount to hold your phone on your controller. You can then download the Xbox Game Streaming (Preview) app from the Google Play Store, and that will guide you through the setup. The only real limitation is that you can't play any Xbox or Xbox 360 games with it.