Yes, You Can Plug Your Xbox 360 Into Your Xbox One
Posted by Ken Barnes
Well we guess that makes it SORT OF backwards compatible, right? No? Ok.
In an interview with Reddit Games, Larry "Major Nelson" Hyrb has confirmed that the Xbox One's HDMI input will allow you to plug all sorts of devices into it. Including the Xbox 360.
In the interview, it was mentioned that you could plug a Windows PC in too, and as the port is just a straight HDMI pass-thru (more or less), you can switch between the Xbox One and HDMI input interfaces in a flash, the same way that Microsoft demonstrated that you'd be able to switch between games and TV content back at the Xbox Reveal Event.
So if you have an Xbox 360 already, that means that you only have to use one HDMI input on your TV to be able to play Xbox One and Xbox 360 titles. Ah! So THAT'S why Microsoft have released a new style Xbox 360 that complements the Xbox One...