We find out a lot of interesting facts through leaked info created by human error. The German Pre has a little Easter egg found in the help section. This leak so to speak gives you instructions on how to use Bluetooth tethering though the support is not even there:
Use Phone as Modem
If you use your phone as a modem, you can access the internet with your computer independently from your location as long as you have coverage. Ask your mobile provider whether you can use this function with your contract.
Ask yourself why in the world you would there be a help section for a feature that they did not intend to have? Let’s hope that if Palm does decide to go the route of Bluetooth tethering that it’s nothing like the how AT&T is currently handling it with the iPhone. They have been promised tethering support and still have yet to see it.