Features that will be great in my home
Kinect recognizing my family. There are 5 of us and its a pain when my Son is logged in with his other friends and I want to get player one set for my controller. Just telling Kinect to show my stuff then jump into my game without logging people out and that stuff is golden.
Full living room Skype. I have family and friends all over the world. Having the Full living room experience Skype calling ability might get me to sell the X1 to family and friends for this feature alone.