For those of you pretneding this technology is not there yet, you can get part of the way there today in MW:O with Nvidia 3D Vision. It is grayed out in the options menu but can be re-enabled in user.cfg. That being said, Cryengine3 suffers from a pretty horrible stereo 3D implementation.
There are, however, games that already exist with great stereoscopic support AND TrackIR support, which means they essential already do what OR does, but without having to wear the head hardware. Finding one of these games that also has great controller input options make the gems that are the most immersive gaming experiences you can get at home.
Probably the best of these is an independent racing game called Live for Speed: full 6-DOF support in TrackIR, near flawless stereoscopic implementation (everything but some out-of-game menus), and fully customizable support for any wheel or other input device.
Other games I've played that at least partially check all three boxes:
- F1 2011, 2012 (limited Track IR motion)
- X3: Albion Prelude (limited Track IR motion and no in-ship 3D cockpits, requires 3rd party fix for starfield depth)
- Wings of Prey (clouds render at screen depth)
- Microsoft Flight Sim series (some rendering issues on lights in FSX)
There are plenty of games that have great support for 2 or 1 of those technologies, but the ones with all three are stand outs in immersion.