would be nice wouldn't it?

sadly the iphone is a huge battery drain...i've had one since conception.

the pictures are decent quality but will not provide any flash or zoom so your pictures will be far away unless its a flower you are getting right next to...the gps service will drain your battery within10-8 hours by itself depending on how often it needs to query the data network.

also the iphone is extremely sensitve to heat and moisture so leaving in your pack could be dangerous...i don't even recommend leaving it in a hot car...

i tired to do it...and i had to bring a solex solar charger which i hung on my back all day and a bunch of wires to recharge it at night

however on a day hike you could get by with it...

sorry for the harshness but i too was elated and then dissapointed by this notion
_________________________
I do it because I can...it also helps that you are not there...