How much is Doug charging for a map these days? This is a trail that has how many people on it daily...200+. If you can't figure out how to get to the top and back without a map...you are in deep bandini. Also, if your phone is utilizing the GPS, it will chew up battery life big time. My guess is if you are on the trail 16 hours, your phone will have discharged totally well before you ordering your cheeseburger and fries at the WPS.
I read an article recently that stated SAR teams are rescuing more and more people who are utilizing their phone or tablet's GPS to navigate the wilderness.
I don't see the utility of this product.
