I took inspiration from tbowren's videos on using a Hydra controller for positional headtracking to throw a simple demo together that lets anyone play with this idea firsthand (up to you if you want to strap a controller to your head or just hold it in your hand).
At the same time, I'm trying to get an idea on how exactly Unity demos and "VR experiences" can be shared with the community in general. I don't have a Rift yet, so I'm hoping the Unity integration is taking care of everything already. My apologies if it doesn't work for you!
Here is a link to Version 2
of the demo:https://mega.co.nz/#!Q19VXKoB!RfnaVSXNZzeIeU7dJE7oGEwjt5MDYuqGnBYi0SpPyZA
(220MB). Also included is the full source code
(in the form of a Unity package that can be imported).
If you end up trying it out, please let me know if something doesn't work or if things can be improved from a Rift user experience standpoint.
If you don't want to download anything, you can just watch a video of the old version here: http://www.youtube.com/watch?v=lGYdIH8nMrY