No special software, just Leopard and the iPhone 3.0 firmware.
I turned on tethering on the iPhone, and left the iPhone how it was. I turned on bluetooth on my Mac and paired it with my phone (via the menubar).
After it was paired, I clicked the menubar Bluetooth icon again, went down to my iPhone's name, and clicked 'Connect to Network'.
Voila
I turned on tethering on the iPhone, and left the iPhone how it was. I turned on bluetooth on my Mac and paired it with my phone (via the menubar).
After it was paired, I clicked the menubar Bluetooth icon again, went down to my iPhone's name, and clicked 'Connect to Network'.
Voila