We are really excited about supporting the Oculus Rift, just as soon as we can get our hands on the dev kit and SDK.
Montague's Mount and the Oculus Rift will be the perfect partnership and add an additional layer of immersion. It is our intension to support the Oculus Rift as an input device on platforms that support it.
Please 'up vote' our Steam Greenlight submission. Fingers' crossed we can get Montague's Mount out there and integrated with Oculus Rift ASAP.