But the question remains: should we use 3D interfaces to work?
The same research society responsible for the development of the MP3 compression algorithm has developed as gesture control interface touted as better than the fictional one featured in Minority Report.
A development team based at the Fraunhofer Technical Institute has created a system that can track the movements of several hands—right down to each individual finger. This "3D Multi-touch interface" doesn't require users to wear gloves, and allows them to control virtual objects with all ten fingers.
No word on when the institute will push to adapt the system for practical applications. It's appropriate to consider the opinions of usability expert Jakob Nielsen, who wrote about 3D interfaces back in 2006:
Many user interfaces designed for the movies feature gestural input and 3D data visualizations. Immersive environments and fly-through navigation look good, and allow for more dramatic interaction than clicking on a linear list of 10 items. But, despite being a staple of computer conference demos for decades, 3D almost never makes it into shipping products. The reason? 2D works better than 3D for the vast majority of practical things that users want to do.
3D is for demos. 2D is for work.
The Technical Institute is part of a wider society of 59 research institutes distributed throughout Germany, operating with an annual budget of 1.6 billion euros.

Everyone will have mad biceps!
Everyone will have mad biceps!
This comment right here. This is also my concern.
Get a girlfriend.
My laugh of the morning..thanks
Just because a person has not physically used this interface does not mean that they cannot form a realistic opinion of it. We have seen demos of such, albiet less advanced, interface concepts for years. Also, could you imagine a company letting you work for half the time because the interface makes you "tired" ? I doubt it.
I work in the mechanical design field and to me a gesture-based 3d interface *is* completely useless for anything but presentations. How exactly are you supposed to input exact numbers & complex commands? Now for presentations, as long as the presenter is not overzealous with radical hand movements while speaking this might be a usefull tool. key word... might.
On the other hand, a true 3d (hologram) display *would* be usefull. In *this* circumstance a few simple gestures to rotate, pan, zoom in and perhaps form an exploded view could be handy. The actual design phase would be better accomplished with a 2d interface though. Unless you are somehow comparing this to the ironman movie, in which case the programs the supercomputer would need to do this would be a work of art. The ability to instantly design & create a working mechanical piece from mere finger strokes is genious. Sorry for the sarcasm.. but hollywood is hollywood, at least for the next few hundred years.
Great... maybe we'll have to pay licensing fees to legally move our hands around in front of a computer now.
That's a stupid saying
Though, who among us saw the holographic display tech in the IronMan movies, and didn't say, "Yes, that is what I want."
If he could, he wouldn't need this. He does need this so....