GPS apps for smart phones

[blazerbrad]

Anybody have any experience with any of the free GPS apps you can download to a smart phone?

Downloaded the Polaris Ride Command app last night and have been playing with it. For driving in a normal car it gives you a decent map view and allows you to trace routes and add waypoints. Also has many trails setup on it, including being able to download regions so they are available with no cell signal.

One really cool feature it has is called Group Ride....if every rig in your group has the device you can sync them together and see everybody on your screen. The only problem is sounds like you need cell service for this to work.