Not sure how I missed the thread Media instead of Geography?
Painted Turtle There are some apps that eat battery life in background - Most phones have a battery life App exstender that can be costomized. The Aptiva has a quick page that allows fast changes to bluetooth, backlight, gps, wifi, and something,,,,
The App exstender puts a heavy sleep on the phone at night and wakes in the morning.Its all hidden in the setting's menu So these thing need to be set up. To buy a phone like this and not read the speed sheet instructions is the biggest issue. I get two days with heavy use. The phone is my newspaper every day.
Looks like I am the only one so far that has posted that has Backpacker Pro. and paid for it... I like it, it works - it store little photos and adds a trip log thats stored to the cloud at Trimble Outdoors... At first it looked like I had to pay for each track hike - that didnt bode well - then I found I didn't need to do that. Yes you have to load the tiles of map prior to going.