Earlier quoted context omitted.
The bulk of your argument seems to boil down to "video calls on TV, much wow". This is not brilliant, or new. My kids were doing that on the Wii U in 2012. Probably at least a third of all conference rooms in America are equipped to do that.
Too much work to edit my comment on my phone. Obviously the Wii U chat only enabled communication with a limited audience, and I think it might be deprecated now anyway. But the Kinect does Skype.
Didn't know about this, huh. That's pretty cool. No questions about the Wii U, but I do wonder why Skype on the Kinect didn't take off more.