"Whether it's for productivity, health care, design, or entertainment, HoloLens creates experiences that aren't possible on any other device, or any  other platform," Microsoft's Windows and Devices group executive vice president Terry Myerson said at its launch.

The headgear, a fully untethered, battery-operated Windows computer which  generates 3D CG objects that appear to exist in the real world, will cost USD3,000 for this initial 'Developer Edition'.