This past weekend I ran up to the White Mtns, using my Garmin GPSMap 60 CS connected via USB to my PowerBook G4, using MacGPS Pro.
It worked great! How amazing to see my position with so much greater detailed maps! All the way down to 1:24K. The maps auto-open as you pass from one map to another.
The downside is that anytime I turn off the engine, there is a brief power loss to the GPS as it switches from power adapter to internal batteries. This causes a loss of signal to the PowerBook. To re-establish a link you have to turn off the GPS, then on again.
I'll probably rig a different power source so it is not interrupted in the future.
Now I also have to come up with a better laptop mounting option. I just made a quickie table unit to sit in the passenger seat.
Very cool deal! :victory:
:sombrero: