Like a lot of people, I need to connect to internet from my Windows Mobile 5-based PDA with an Intel 27x processor, but the TCP/IP connection trough bluetooh, which works with ActiveSync, doesn't allow to use Pocket IE. But as a temporary fix I created a little script in python that emulates a GSM modem in the PC. Using it allows to navigate from the PDA using BlueTooth and the PC's Internet connection.
To use it you must configure your PC as explained in the Synce's wiki for BlueTooth, this is: create the DUN file for PPPD, launch DUND with --activesync, and do "sdptool add SP", but don't launch "triggerconnection", nor use the "Conect with BlueTooth" option in the ActiveSync menu. You must add in your PDA an outbound serial port linked to your PC too.
Now you have to configure your PDA to connect using a HAYES GSM modem (it seems that putting it as a GPRS modem doesn't work) located in the serial port you linked. Launch then the script and, when it tells "Waiting for connection", try to connect.
Unfortunately not all is pink: whith this GSM connection is not possible to use ActiveSync. Even more: if you try to connect ActiveSync using BlueTooth while the GSM connection is still alive, your BlueTooth system in your PC will fall down, and you will have to reboot to recover it (at least that's what happens to me). To use ActiveSync you must hang up the GSM connection and launch its specific BlueTooth connection. I tried with TRIGGERCONNECTION but it didn't work :? Maybe someone finds how to do both things simultaneously (I did a NMAP to the PDA and all ports were closed).