I was gonna say gourmand added some stuff about connecting with a PC, but I think it's only for using your PCs net connection:
http://www.internettablettalk.com/wi...tle=Diablo_PAN

So... does the n810 really have a bluez module for sharing over PAN, or is it possibly just a bug in bluez (or somewhere else) that claims to support PAN?

I think Nokia's (threw that in just for you, texrat ) network manager might be too simple to share the other way around over BT or WiFi, but I'm sure you could manually set up an adhoc wifi network to share with your PC.