The Xbox One is getting a software update soon, and along with all the standard UI tweaks is coming a feature that will help disabled gamers.
Microsoft calls the new feature Copilot and it essentially allows two Xbox One controllers to act as one unit. According to the official Xbox blog,
This will help make Xbox One more inviting to new gamers needing assistance, more fun by adding cooperative controls for any game and easier for players who need unique configurations to play — whether that is with hands apart, hand and chin, hand and foot, etc…
Anything that gets more people gaming is a good thing.