15 Apps for Navigating with your Apple or Android Device - Sail Magazine
i-Boating: Marine Charts & Gps on the App Store
Amazon.com: iTODOS Tablet Mount for All 7" - 12.9" Tablets and GPS Navigation, Fit for Truck, Car, Commercial Vehicles, Boat, Desk,Aluminum Alloy Base, Compatible with Samsung Tab, Nexus, iPad Car Mount :
iPad sailing: Pip Hare's top tips on using your tablet to navigate