But its more interesting to look at these "novelty" interaction patterns as stepping stones and building blocks to future interfaces. Most new things look novel and useless until someone cherry-picks the bits and pieces and makes something really revolutionary with them.
tl;dr More weird things, please!
I'll attempt to make a prediction: gesture based and other natural computer interactions will become common-place by 2020, primarily in living room and personal robotics applications.
And right now, it is at the stage slightly ahead of the time when touch screens were first introduced: http://www.vintagecomputing.com/wp-content/images/retroscan/...
Basically, with my program (http://www.mute.fm), your music will get paused/muted automatically whenever a video plays and will be restored afterward by monitoring the volumes of different processes.
This doesn't support the use case of needing to pause your music when you have a real life phone call, need to leave your desk, or have people gathered around your computer, though.