[Aardwolf]

We went from big CRTs to flat touch screens. What more do you want? A flat touch screen is a pretty practical form, unlike a CRT, so it is kind of the reached target of an evolution imho.

Surely gimmics like screens in tshirts, glasses, and what not may appear as well, but a flat hard device simply is a good useful form.

I also never saw them charge their devices by plugging them in the wall. There's something that's pure sci-fi for us: actually long lasting batteries.

[icebraining]

We're very far from the target of the evolution. The screen is still physical, it's not even an in-air projection yet.

And having a screen is itself redundant when you have glasses with true 3D overlaying, where you can just make a screen appear wherever you want with the size you want.

[r00fus]

Take a look at Final Fantasy: The Spirits Within (2001) - the holographic "touch" input is pretty sweet - it could even be completely invisible to non-users.