OSSIC (formerly Sonic VR) has designed prototypes of headphones that do automatic HRTF calculation and headtracking.
https://www.kickstarter.com/projects...s-calibrated-t
http://evonexus.org/evonexus-companies/ossic/
They needed 100.000 $ in 60 days. The kickstarter is 3 days old and they have reached 350.000 already. Apparently a lot of people believe in this.
Is 2016 the year of Ambisonics and 3D sound?