Been very impressed using my ipad mini running foreflight app for flying. It is a subscription based app, but they have 30 day trial use. I have been playing with it and it appears that it may be a very handy way to use google earth type imagery for boat based navigation. Has anyone tried this for boat navigation and weather?? I will be giving it a go this spring and if I hunt my DM828, I will be running it along with my GPS.