Today I finally had success pairing my Go 730 and my TP2. I installed the latest version of MightyRom and it was initially no luck getting the data connection to work between the TomTom and the TP2
I was looking at this thread at XDA
http://forum.xda-developers.com/showthread.php?t=560865
I decided to look at my registry and made this change
[HKEY_LOCAL_MACHINE\Software\WIDCOMM\Plugin\DUNServ er\ControlPanel]
Enabled=1
I then repaired my TomTom with my TP2 and success! I now have a properly configured data connection and can access TomTom Traffic. Try out MightyRom and see if this will work for you.