Sharing internet via bluetooth with Palm treo 650

OS X does not allow for the sharing of an internet connection via Bluetooth.

It shows up on my Internet Sharing options.... not that I've tried it - the data rates are huge in Canada.

Can you share via a dial-up modem? Because my 650 sets itself up as a virtual serial port.

Yes it does. System Preferences -> Bluetooth -> Advanced (10.5)

Actually you can share.
If by this you mean using the 650 as a modem.

From the bluetooth menu choose set up devive. The assistant will walk you through and there will be a place to choose weather you can use the phone's internet connection as a modem.
I don't know if the treo supports this. My RAZR does and I have actually used it to connect.
This is not the same as pairingbut it may run you through the pairing process again.

Good luck

Juste done it with a treo 650 and it worked perfectly.
But you need last Apple OS for the treo to be recognised as a bluetooth modem. I (only) have Tiger so had to download the "Generic GPRS modem" near the bottom of the page http://www.taniwha.org.uk/ that as other good stuff about others phones and serial modems. For myself I got good results with "Generic GPRS CID3" script. You need to drop the file in /Library/Modem Scripts/ and follow others instructions from the "Read me" file coming with. Except dialing the strange numbers like #*876543 (don't remember).
You need to put a user name and password. For Orange in France it's Orange and Orange ! You can do this in the network/bluetooth/ppp panel or in the "internet connect" application that you need to start in order to connect anyway (unless you checked the box "connect automatically if required" box in PPP options of Preferences Panel.
For the treo you have to "pair" it with the mac first Mac OS give you a string of numbers to enter in the treo when it discover it first time. Treo must have bluetooth enable of course and in the bluetooth pref panel of the treo you must clic on the Remote access dialogue (after "pairing"), the bluetooth icon change for one with a little notepad an littler bluetooth then you can clic "connect" in "internet connection" for the mac.
Works perfectly for me 🙂

Merry Chrismas !

Plz let me know how to setup my Treo 680 as a modem for my MBP. I can't discover/pair either my MBP or my Treo. Do I have to download and install the scripts first?

First of all, I'm pretty sure that you need The Missing Sync for Palm installed on your Treo. Follow the instructions in the Help menu for "Internet Sharing Assistant." You'll need to create a bluetooth connection profile on your Treo. On your Mac, you need to pair your Treo 650 (obviously), and under Bluetooth preferences, click on your Treo and then click the "Advanced" button. Make sure that "share my internet connection with other Bluetooth devices" is checked. You'll get a message that a new Bluetooth network interface is being created in Network preferences on your Mac. What's weird at this point is that I can't quite get it to work: in Network preferences, the status of "Bluetooth PAN" is "Cable unplugged," which is pretty nonsensical for Bluetooth!

I'm having the same problem 😟 Anybody know how this works yet?

Not working here. Attempting to share iMac ethernet connection via Bluetooth to the Treo 680. OSX 10.5.3 does say it can "Share my internet connection with other Bluetooth devices. This allows other Bluetooth devices to use this computers Internet connection using the PAN service." in advanced on Network Prefs.

If it worked, I'm guessing the Network prefs would look something like sharing airport, ie Airport with Self Assigned IP. There is also no setting, like there is for sharing over the airport, that would define the shared network.

Attempting to connect just fails, as there is no network for bluetooth to connect to. Treo 680 Service Connection Progress window starts with Initializing and ends up with "Error:Serial: (0x030B)"