I don't see VR as even remotely comparable to the smart phone revolution. A phone is a tool, it's an accessory. It's easy to use for a half a second, anytime you want. You can glance at your phone while you're working and not miss a beat.

VR is an activity. The effort to use VR is a magnitude more than the effort to use a TV, Laptop or Desktop, and those are a magnitude more effort than using a phone.

VR is more like a Wii or a Kinect than a phone, except it's significantly harder to use than either of those.