I have a question. Do you need to run wvdial with sudo? I always ran it as user and it worked perfectly fine.
I also had a revelation during the posting in this thread. By going to System --> Preferences --> Network Connections and entering the phone #, password and username under Mobile Broadband, all I had to do was enable usb mode on the Treo and I was automagically online. It blew me away.
I don't know if this was because of Fedora 11's Network Manager, or, whether it is a function across all gnome based distros, but, I'm certainly happy that this thread happened. I no longer need to use wvdial.
I am glad that I can help. It may be a coincidence, but I was helping a windows convertee today on ubuntu and was able to use the same search results to setup his EVDO card and tethered phone (actually the EVDO card was auto-detected and auto-configured).
Yeah, auto detected and auto configured, maybe the gnome network guys have been working overtime. Also, BTW, Vista 64 doesn't have a working driver for the Palm usb device, so it doesn't work in windows, even with the Verizon software. The only way I can tether the computer is in Linux.
I'm wondering if the same Network Connections choice is in the Ubuntu Menu. Might be worth a look. You won't need to reset the baud rate and you won't have to bother with the wvdial.conf file anymore. Just a thought.
I've got to get an Ubuntu install put up as a guest in kvm so I can look at these things myself, another project for another day.
Glad your making progress, I'm glad also, because so did I.