I think this is exactly what the media is trying to get at when they refer to Pokemon Go as an "AR" game, and I'm surprised most folks in this thread are missing the mark.

Seeing as plenty of companies are wanting to cash in on the visual definition of AR, perhaps we need a differentiated term here? If you wanted to highlight the locational aspect, perhaps something like "augmented cartography" but I think the idea goes beyond harnessing position data... it's more generally about annotating reality, in a way.