Our all-star interns have been brewing up some cool devices this summer at 3DR. Three words: Oculus Rift FPV.
We have the Oculus communicating through the Mission Planner as a joystick input, driving the pan/tilt servo gimbal on our Skyhunter fixed-wing aircraft. Video is piped to the ground via standard 5.8GHz TX/RX gear, with the 3DR OSD kit in line. The end result is one for which you should stay firmly seated; even without the video stretched all the way to the periphery, the experience is incredibly immersive.
Our current setup is based on monocular video, but stayed tuned for more from Project Warg, including stereoscopic video, new airframes, and closed-loop aircraft control with the Oculus!