You know, the Xbox One controller is pretty great. It features a much superior d-pad to that of the Xbox 360's, and unparalleled rumble in the trigger buttons to boot. On the other hand, the bumper buttons are a step back from the 360's, and will never be as responsive as you'd want in a game like Killer Instinct.
A company called Console Tuner is on the case. They have engineered a USB peripheral called the Titan One that lets you use Playstation 4 controllers with the Xbox One, and vice versa. In fact, you can even use Xbox 360, Playstation 3, and pretty much any USB controller on your modern consoles. You have to admit, that sounds like an especially useful accessory.
Full story from the WPCentral blog...