Steve your technology sounds wonderful but it also sounds expensive. A map costs about eight quid and you can get a fairly decent compass for four or five quid ....no batteries required, ever!
Maps have a simple magic about them.
Can you roll a really big cigarette on top of a computer in a force 9 gale?
Can you swat an attacking horsefly with a computer?
What about the simple pleasure of sitting on top of a Cumbrian Fell with your map spread out in front of you whilst you identify the distant peaks, you can't do that with a computer.
Given a choice betwen a paper map and compass and the latest state of the art all singing, all dancing gadget. I'd take the map & compass every time.