Once you’ve got your hands on it, getting started is easy. Just import the Unity 4 Oculus integration package into Unity, open the demo scene and get going.
The release supports Windows, Mac, Linux and Gear VR with full access to LibOVR through a pure C# wrapper.
High-quality in-editor VR previews
Simple direct-to-Rift rendering
Lens correction, TimeWarp, and dynamic prediction from LibOVR/VRLib
Layered camera support for cockpits, UI, etc
Cross-platform support for XInput controllers
Consistent IPD and head model for comfort at all world scales
Dynamic prediction with the DK2 Latency Tester
Utilities for locomotion, Tracker access, and Rift status
At Unity we were enthusiastic Oculus Kickstarter backers, and we’re working closely with Oculus to optimize frame rates on games made with Unity and deliver the best possible workflow experience to all our users.
P.S.: For anyone wondering about Gear VR deployment with the free version of Unity, see here.