/Rant on/
Aaaaaaaaarrrrrrrrrgggggggggghhhhhhhhhhhh......
Ring tones on the hills as well as on the train, pub, cinema, blah, blah.....
What's wrong with a map & compass.
/Rant off/
Looks nice though.... pity people forget that electronic equipment (batteries, displays, etc...) really don't like the cold & wet. At least a map and compass is more "fail safe".
Also, if you've fallen & broken your ankle(s), as in "Scenario B", you're probably now lying in a place where you're not going to get a signal anyway!
M