[alexvoda]

This reminds me of this demo from 2007 https://www.youtube.com/watch?v=Jd3-eiid-Uw

And also didn't the Amazon Fire Phone have head tracking?

Also found this, done on an iPhone in 2011: https://www.youtube.com/watch?v=7saRtCUgbNI

Or this table using a Kinect in 2012: https://www.youtube.com/watch?v=2CbiOikirrg