sadly the things you said abou kinect are right.
reality is far more crass than your idea, which you might thing of as overexaggerated-but it is not.
its worse.
it WILL take notes- on how much people are in the room and THEN it will shut down the thinsg(eh movies) you &your pals watch until you entered your credit-card number or bought enough points to pay 3 times more because you and 2 other people are in the room adn none of the other people bought the movie you want to see.
and because they did not bought the movie, you have to -for them.
big brother 2.0 was never so real as with the: always on+ face recognition+ heart-rate monitoring+people counting(and via face recognition identifying)money demanding+room surveiling +motion detecting (and seeing how much force you apply if you hit the pal next to you because he makes too much noise with his popcorn) kinect.
micoroft filed a patent for this technology. and for applying the technology on pc and smartphones if you connect the big-brother 2.0 with it.
full patent:
i urge you to read it, most important are point:1, 5, 6, 8,9, 12, 13-14, 15-18
http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220120278904%22.PGNR.&OS=DN/20120278904&RS=DN/20120278904