I made this cab to enable bluetooth tethering and choosing sprint as the connection rather than phone as modem. The way I edited the registry allows for two drop down choices on the ICS page... BT or USB and PAM or SPRINT.
If you want to try it. There are a few other cabs too but they don't make the exact same reg edits. Check out the tethering threads then make your choice or edit registry to your personal choices.
http://forum.ppcgeeks.com/attachment...8&d=1241482712
What my cab does is delete all keys except MaxCMConnectRetries
in the HKLM\Comm\InternetSharing\... delete all but "settings" folder in settings folder delete all but MaxCMConnectionRetries (which is set to 0 )