Microsoft promises touchscreen PC no thicker than sheet of glass

"What will happen is that Surface will become no thicker than a sheet of glass. It’s not going to have any cameras or projectors because the cameras will be embedded in the device itself."

Buxton claims Microsoft is developing a new type of screen technology to make the miniaturisation possible. "The best way to think about it is like a big LCD where there’s a fourth pixel in every triad. So there’s red, green, and blue pixels giving you light, and a fourth pixel which is a sensor that will capture stuff."