I am going to try the Navionics for the smart phone.
I know that they have a few different applications for it and this must be the one that is better because i have heard that one of them is not that good.
Also, I purchase the best thing to carry my electronics. I purchased it at bass pro last winter.
It is a waterproof soft plastic case that locks and seals it. It has a long cord on it so you can put it over your neck. Works great.
I will get the name of it for you.
David