I'm sick of parralax barrier being the only auto-stereoscopic (aka glasses-free) tech being used. There is far better tech available that can use a camera to track your eyes and aim the pixels directly at them. No need to keep your head still like with 3DS and other parralax barrier displays.
Parralax barrier is way too heavy handed of an approach to glasses-free 3D. Keeping your head still and stiff while trying to play a game or watch a movie gets tiring quickly.