Manufacturers of gaming accessories spend serious money on improving the ergonomics of keyboards and mice intended for game lovers. Convenience and speed of reaction much decide in a virtual battle, but PC supporters become hostages to their habits - to sharpen the skill when switching to game consoles with their specialized manipulators, you need to spend a lot of time on "practical exercises."
If game controllers for PC are released from time immemorial, the game consoles keyboard and mouse have traditionally been deprived of attention. Microsoft has long promised to implement support for these input devices for the Xbox One family of consoles, but only recently such a perspective has acquired some real outlines. According to the resource Engadget referring to the fragment of the broadcast from PAX West, Microsoft representatives at this event promised that the keyboard and mouse support will soon be implemented for Xbox One. For developers this option will not be mandatory, and everything will depend on their desire to implement keyboard and mouse support.
Attention should also be paid to the fact that in multiplayer games only owners of similar input devices can act as reciprocal opponents. That is, a player with a keyboard and mouse will be able to resist only to another player with a keyboard and mouse, and a player with a joystick is only an opponent with a joystick.