Wired.com's Report on the State of 3D Technology
This is the most significant bit to me:
But even handsome 3D specs can’t mitigate the headaches and fatigue suffered by some viewers of 3D content
Avatar in IMAX made me nauseous and dizzy after just a few moments. The Nintendo 3DS is the only 3D display I've been able to use for more than 10 minutes at a time, but even then it tires my eyes out faster than normal displays.