I did it on my Nokia E70, but it should work equally well for all S60v2 and S60v3 phones as well. (E50, E60, E61, E62, E70, E90, n70, n80, n95, 6820, 6822, etc)
Most easily read with instructables all steps on one page view
Credit for this process belongs to Erik Smartt
Step 1: Install python on your phone.
Step 2: Bluetooth Pair your Phone
On your mac, in the Bluetooth System Preferences pane, add your phone as a 'Favorite' so your phone can automatically connect.
On your phone, in the Bluetooth application, set your Mac as "Authorized" so your mac can automatically connect.
Step 3: Create the bluetooth serial port
Click "Add Serial Port Service"
Name it something you'll remember (like 'bt_console').
Change the 'Type' from Modem to 'RS-232'.
Step 4: Connect to the serial port in Terminal
Changing bt_console if you named the serial port something different.
Leave this window open and switch to your phone for the next step.
Step 5: Open python on the phone
If you do not see an icon for python, please return to Step 1 and make sure you've installed both Python and the Script Shell.
1. From the Python application, press the left soft key and select 'Bluetooth console'.
2. Select 'Other...'
3. Select your Mac from the list of computers to connect to.
4. Select 'bt_console' from the list of available ports.
5. Set it as the default (so next time you can save yourself some time).