Major Nelson, in an interview with Zulfi Alam, general manager of the Xbox accessories group, has revealed the 7-minute video above showing off the bevy of improvement of the new Xbox One controller to the original Xbox 360 controller.
I won't spoil everything that's in the video, but the emphasis is on the smaller battery compartments for a smoother back, smaller rumble packs in the trigger buttons, a lower, redesigned D-pad, and a micro USB port that won't require you to purchase two separate controllers just to have one wired and one not.
But the best part is seeing the inside of the Xbox One controller. Makes me want a transparent one.