Tony Fadell, the brains behind the popular Nest thermostat, used to work at Apple where he'd helped engineer the iPod music player, earning him a nickname of the iPod Godfather. He also led the development of the first eighteen iterations of the original iPhone. In a recent interview, the famous engineer revealed that Apple in the past had experimented with the idea of a virtual reality headset and has actually built a few prototypes of a Google Glass-style device.
"The craziest thing we talked about was something like Google glass," says former Senior VP of iPod division...