Can NVIDIA or AMD cards even drive 3D LCD TVs? I thought those required HDMI 1.4?
I came across Cyberlink's 3d white paper which has a good explanation of most of this stuff:
http://www.cyberlink.com/stat/3d-support/enu/3d-whitepaper.pdf
If you go down to page 23 it starts to get into some good info about what to expect from hardware.
Apparently the HDMI 1.4 spec is upgradable from HDMI 1.3 on current video cards so you just need a HDMI 1.4 quality cable, so supposedly they would be able to drive the true 120Hz 3D LCD's.
Even on HDMI 1.3 you can output 3d in interlaced format to polarized monitor or in checkerboard format to a DLP 3D Ready TV. The Blu-ray 3d spec is agnostic to how you actually display the 3d, whether it be full quality 120Hz shutter glasses or interlaced at 60Hz. The player can set output options and if you check out iZ3d's settings there's quite a few choices, even interlaced on shutter glasses - I'd assume PowerDVD has as many options as well.
I don't think so. Auto-stereoscopy works for one user only, unless both all people are really close to each others and have the same eye movements.
Hmm my understanding was auto-stereoscopic TV's had ~8 'sweet spots' if you could get people directly in place with them. But regardless, having to keep your head in 1 spot to watch is much worse than having to wear glasses. I don't know why glasses are such a big deal to people anyway. Maybe they need LCD shutter contact lenses.