I've thought about that too, but am not aware of the software. My hangup is the fact that there is not a field replaceable battery. Not going to take something so crucial in the woods for days at a time that I use a spare battery for. Nice gadgets though.
In the beginning God created the heavens and the earth. Genesis 1:1
"And can the liberties of a nation be thought secure when we have removed their only firm basis, a conviction in the minds of the people that these liberties are the gift of God?" Thomas Jefferson - Notes on the State of Virginia
good point about the batterys, I never go into the field without a milldot master and all my charts for the load i'm using anyway . basically if any or all of my battery kit fails then I'm still able to hunt ! Think I may go with a dedicated pda after all .