Sadly, most GPS vendors do not currently offer Mac software. The WorldNav Series of Portable Truck GPS insures that routes will follow roads that are suitable for The commercial driver. The Teletype WorldNav Series of Portable GPS is an advanced touch screen Truck Routing GPS for professional truck drivers, bus drivers, and RVers. The software combines the basic marine passage planning with the complex AIS capabilities as well as GPS navigation thus making the most robust and reliable software for sailors from all over the world. The Polar View navigation system is a comprehensive, user-friendly onboard system for the Mac OS X.