Google shows off its latest Project Tango experiments

For three years now, Google has been working on its Project Tango augmented-reality (AR) technology for mobile devices. For three years, non-Googlers have been waiting patiently to use it. But in a few short weeks, Lenovo will be launching the first Tango-compatible smartphone that is intended for consumers.

Demos over the years have been exciting. And today, at the Google I/O developer conference in Mountain View, California, there were more demos that made the system look even more promising.