An important element of that delivery is a more complete, higher quality development toolset that increases performance.

ENGADGET: ARM, Samsung, IBM, Freescale, TI and more join to form Linaro, speed rollout of Linux-based devices

With the Oculus-ready version of the UDK, you'll be able to start building incredible VR experiences with the Unreal Engine toolset the moment you receive your Rift development kit (or even right now, if you're so inclined).

ENGADGET: Unreal Engine 3 adding Oculus Rift support this April, Epic Citadel demo packed in