This is a quick demo showing how you can use a $100 inertial measurement unit and a light weight laptop as a rough version of the Oculus Rift VR headset. A friend and I have a game idea we wish to build for the Rift but since units won't start coming until around December, and neither of us ordered one (since we didn't have the idea during the Kickstarter campaign), this is our "close enough" workaround.
Sample code for driving a Unity3D camera using an IMU is available on my GitHub page. [edit: 02/07/2013, now updated for the TinkerForge protocol 2.0]
This blog is very seldom updated. Having kids will do that.