Several users have asked how the Bluetooth setup process goes for OS X Leopard -here's how!

Make sure ExtGPS is runnning on the phone. Open Bluetooth panel from System Preferences. If you have not yet paired your phone, press the plus (+) button, otherwise you can click on the asterisk (*) and select Edit Serial Ports.



Now the OSX connects to the phone and searches for new services. The serial ports screen typically has DUN service already setup by the Bluetooth wizard, now just click plus button to add new serial port. In my case, the first click adds ExtGPS port and all the settings are correct automatically:



Now ExtGPS is ready to be used, just use the given port name in your application.