But after putting it together, we soon learned that with just some cardboard, a magnet, a rubber band, some magnifying glasses, and the Cardboard App, you, too, can fly around a virtual space ...

some sort of headgear or enclosed 'cave' is required to view holographics, but within five years I think we'll see AR/VR [augmented reality/virtual reality] just sprout out of the phone," Mr ...