My problem with the video is that it's the kind of depiction you get when there is nobody able or willing to say "this is impossible to do". Every display seems capable to project 3D images in the air, some of them translucent, others opaque. At the same time, there are screens hung on walls (or on fridge doors). There is also a translucent touchscreen that seems to project different images on each side. Technically, it's about as plausible as http://pomegranatephone.com/
As for the translucent screen, projecting different images on each side is (at the same time) is just an assumption. It could very easily have a accelerometer to detect the 'flip' and change based on that.
OK. There is both light subtraction and emission happening on both sides. You could have a middle-layer of LCD shutters between a sandwich of translucent LEDs.
But I think the worst offenders are the desktop-mounted 3D display and the projection-capable PDA.
I am aware you can light up a voxel of air with enough energy. I am not sure you can do it in full-color, from a battery or whether the user would be able to interact with it without an aluminized fire suit. If I had that kind of power source in my pocket, I'd be warping space into stable wormholes instead of taking cabs.
I love, however, the use of type.