The eMagin Z800 3DVisor is stereoscopic (SVGA OLED) and headtracked 3DOF (yaw, pitch, roll, no position data). A user on the osg mailing list finds it of “Gamer grade more than VR-grade”. “Likewise, it’s only $800 or so, so you get what you pay for. ;)”
And here’s a discussion about it on the 3dui ml : listserv.vt.edu/cgi-bin/w…
All about the newest display generation you can find at:
http://www.oled.at (German) or
http://www.oled-display.net