The AR side is equivalent of taking a 6" phablet and holding it at arms length: that dinky rectangle is your augmented viewport.
It doesn't do anywhere near a full AR on everything everywhere you look.
It's also telling, that my previous post in this article was modded down pretty hard. a few of us went to Chicago to demo this, and I was sorely unimpressed. And the AR was only one facet. The bigger problem is their choice of active scanned IR.
They mentioned that their new API will to geocode everything you scan with GPS points, reference points (wifi) and other ways of triangulation. And those points will be linked to Lat/Lon. That sounds exciting and scary both... but with failure to adapt to that huge glowing ball of wideband radiation means the Hololens is a fail outside or near windows.
I guess that leaves the basements to us?
Do they "conveniently" upload all this to "the cloud" too?
My guess is that yes, they would sync to MS local maps of your environments. It would make a great deal of sense, as that's where Google has a huge hole in on their maps service. It would put MS on the "map", literally and figuratively.
Almost all tech journalist that tried it were blown away by the experience. Most of them mentioned the field of view issue, but I haven't read anyone saying that it was such an issue that it made the technology any less impressive.