Joseph:
First, I fixed the text so your post would display. Any "curly" quotes and other characters you can't create from a keyboard cause the text to vanish. It's a php software bug caused by our hosting site upgrading. I need to upgrade the forum software.
Next: WOW! Gmap4 has been my favorite mapping tool for years, and this should make it even more interesting. I'll have to try out the features.
Question: All iPhones don't carry real gps receivers, only the latest, if I understand correctly. So the phone's ability to locate its current location depends on being near cell towers, is that correct?
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To read plain English instructions that I guarantee you will understand (I don't know how to write computer babble-speak) please visit the Gmap4 Help page and download the pdf file "How To Use Gmap4 Offline".That's hilarious!

Microsoft is truly the best at creating
computer "babble-speak", complete with their "did you find this helpful" question boxes at the end.