[Renzo Mischianti] got himself a Chinese 3D printer, specifically a FlyingBear ... it provided no browser-based interface for monitoring and control purposes. This seemed a bit short-sighted ...

And there's no question that this is a neat way to experience a 3D interface. It doesn't require any special preparation to get started—no googles or glasses—and as the iPhone first ...

Powered by a transparent LED, Lee’s system combines gesture controls and 3D graphics to create an illusory ... his eye movements and adjusts the interface angle accordingly.

“So the way we put this interface together wouldn’t be cost-effective enough for the mass market, but there are lessons that can be learned to make something based on the idea of 3D interfacing.

Apple also mentions that sensors could be used to detect gestures above the surface of the device's display in order to allow for natural 3D manipulation of the user interface environment.