I’ve finally decided to do something about getting my GPS (Garmin GPS III) to work with my iBook (in anticipation of my coming vacation when I’ll see if I finally go hunt some caches).
Of course I bought the compulsory Keyspan USB Serial adapter and it really works like a charm. It does give me one more item to lug around on my back-pack though so I’m guessing I’ll eventually end up buying a Bluetooth-enabled GPS and be done with it but for now it will do.
I also bought MacGPSPro and so far (although I’ve only done a few tests with it) it seems to be all I could want.