Hmm... But will Google be able to pull off what Microsoft is doing... Making Universal Apps work on HoloLens.
That means Google will have to make Android apps work on that device, and I'm pretty sure they won't be able to do that any time soon.
These people are still raising money for it, and I'll bet it's not going to be out any time soon. HoloLens will already be on the market and entrenching itself as the technology developed with and trusted by NASA.
So far all that's been put out about it to show it off is a "video" that shows off what anyone in Hollywood can put together fairly easily. There is no actual working hardware to be seen as of yet, no prototype, only a goal to achieve this.
I think the video was created after the HoloLens announcement, just to try to get in on the action and to keep from falling behind. If they really want to see something incredible, they should take a look at HoloLens, which already has working prototypes and they are working on production details at this point, not just getting started.