[bedoig]

On the latest ROM (3.56), Sprint removed the option in Internet Sharing to choose between "Sprint PCS" and "Phone as Modem" connection profiles. Presumably this was an effort to stop unauthorized tethering. The reg change simply sets the default dialing profile to "Sprint PCS."

Sounds like your setup is working, but you might want to disconnect from your company internet connection and verify you are getting a connection through your phone before you hit the road. Sometimes the program can be a little flaky, but a soft reset will usually fix any connection issues you run into.