Looking for something else, I stumbled upon this in an All About Symbian forum. I had read before that I could use the Bluetooth connection to my PC as my network connection from my phone instead of GPRS, but was clueless as to how. This thread gives all the details:
Q: i have adsl on my pc. I want to use my bluetooth connection to share the net access that my pc has with then phone. any ideas how i can do that?
A: It's very easy!
Tools, Settings, Connection, Access Points, Options, New Access Point, Use default settings.
Connection name: Bluetooth DSL
Date bearer: GPRS
Access pont name: none
User name: None
Prompt password: No
Password: None (default)
Authentication: Secure
Gateway IP address: 0.0.0.0
Save this and connect your 7650 to the Bluetooth COM-Port. The mRouter Tray-Icon should show now that the device is successfully connected.
Next open the program of your choice (Wireless IRC) an select "Bluetooth DSL" as default connection - that's it!
It works with nearly all programs except the default browser.