I think there may be some cool applications of AR in the future, but these demos that have been posted here are not really impressing me much. For one thing, it's easy to look at a demo video of an object in someone's back yard or house and think, wow, that's neat. But the video tricks the viewer into believing that is what they would see if in they were there. The reality is that you are only seeing the virtual object through the small screen of your handheld device so there is little sense of being immersed in a scene. This might be fine for some practical applications but am immersive game experience is not there yet. For this, I think some kind of glasses will be necessary. I will not want to walk around holding my phone inches from my face for very long.
Bingo. That's exactly the problem with their execution of demonstrating the technology. Did they not THINK it would lead to that problem? Had they introduced some form of AR glasses or goggles, this would have solved the problem for long term use. It would have been far better to use goggles and stream the actual image onto an iOS device or desktop for spectators to see what's going on.
They're not really doing anything revolutionary that I haven't seen before. AR with goggles is appropriate to use for indoors or outdoors, but VR is more for indoor use for a 'deeper dive' into a three-dimensional environment.