He got it,

Head mount display, Phone, playing PS4.

Veröffentlicht am 06.06.2015
https://www.youtube.com/watch?v=S9OGj-vX_xg
Sony Z2 Phone (FullHD)
+ CM11 (CyanogenMod)
+ SBS 1.09 (Native SideBySide)
+ Remote play
+ DS4 controller

nothing about head tracking..
but i would use my ZEISS/Arduino Headtracker..
and would try USB OTG Ethernet.. instead of Wifi…