Nintendo's glasses-free 3D screen on their 3DS is good, but it's just a first generation product. Newer versions should get better in every way. Such as MIT's new glasses-free 3D screen.
The new screen, called HR3D ("High Rank 3D"), provides a brighter image while using less battery power than the 3DS. How?
Unlike the console, the top screen creates a custom image based on the bottom projection instead of processing it in large chunks. Basically, instead of only letting the bottom screen show through in a few vertical lines, this lets the bottom screen show through in thousands of places positioned around what's being shown on the bottom screen. Because of this, the HR3D screen lets a larger amount of light pass through, making it lighter, and uses less battery power while doing so.Pretty cool. It wouldn't be surprising to see this tech used in phones and future handheld gaming consoles. I guess the real question is this: do people want mobile 3D enough to warrant all this innovation?