ZpaulZ I'm glad they are continuing to research this technology that doesn't depend on glasses.
For me, the only mitigating benefit of wearing a device directly on your head/face is if it can uniquely facilitate a fully immersive experience (like Cinera or a VR headset). While lighter and less bulky, 3D glasses used with a TV screen or projector have always been a bit of a hindrance to viewing the screen in terms of clarity and comfort.
I appreciate that a major limitation of glasses-free displays is that you are losing a key component of the 3D effect-creating apparatus, that was positioned at the location/perspective of the person viewing the screen, and so these screens become weaker at producing 'outward' 3D and are mostly effective at creating a sense of 3D depth within the TV screen itself, but with a less pronounced overall effect than when using the glasses.
In any case, I'd love to sample this technology and see how good the effect is for myself.