Our Google I/O preview: Why we think VR is going to dominate (The 3:59, Ep. 46) - CNET

Google is going to bet big on virtual reality.

The online search giant will hold the keynote address for its Google I/O developer conference on Wednesday, and VR is likely to be a big topic at the event. We're expecting to see some hardware, and there's buzz about software in the form of Android VR.

But virtual reality isn't the only big topic we expect to hear about. Google should talk a bit more about Project Tango, its interior mapping technology, as well as a rumored rival to Amazon's Echo.