Microsoft says it will start shipping a developer version of its augmented reality device, HoloLens, for $3,000 on March 30.
That's around the same time Facebook's Oculus will begin shipping the consumer version of its Rift virtual-reality headset for $600. HoloLens differs from the Oculus Rift in that it makes the viewer see three-dimensional objects in the real world, rather than blocking out the real and replacing it with a 360-degree fictional universe.