Yeah I’m aware of that but UWP for Xbox One means for example you can run the game on your own console today without being registered developer. In future it could possibly also mean you can get your games reached by Xbox users through the Windows marketplace. For the hardware support I’m not sure where are you actually referring as the support for all the platforms come with UWP itself and rest is just optimizing memory use, shader complexity, etc. to get running on lower-end hardware.