A question for the Masto mind trust.
I need a GPS map that can provide high quality location information (within a few feet) that runs on an iPhone and will work without network connectivity.
Well, without network connectivity in the wild. I would like to be able to download a satellite image of about a square mile around me, but then I need to be able to see myself on that map as I move about.
Is this something I can do with OpenStreetMap?