Long story short: I'm going canoeing, and I'd like to use the iPhone's GPS to make a track of where I'll be going. I'd also like to create points of interest. I'm trying to create a new digital copy of an old map. Any programs that would help with this? I don't mind paying if it works well. Also, I'll be out of coverage at some points, will the GPS still track even though the map isn't updated? Thanks, any thoughts and advice is appreciated.