No criticism intended! I just wanted to let people know how to get the app working.
in fact, I owe you 'big time'. I took the train into work this morning and tracked my progress with your app, Google Earth, and a bluetooth GPS.
The cute girl who sat next to me was VERY impressed. :-)
Ok... this works, but there's no documentation so it took me a few minutes to figure it out.
You must download BOTH gpsdX and gps2geX.
The first is the GPS data server that interfaces with the Google utility (gps2geX).
After installing gpsdX launch the new app in the Applicaton folder and configure it for your GPS hardware port.
Then launch gps2geX and tell it to open the KZM file. Once Google Earth launches, notice the new sidebar GPS and check its box to activate it.