Thanks for all the info in this post!

I use USBModem instead of pdanet (because they have a Windows focus and I use a Linux desktop). At first I wasn't able to connect with your suggestions. The phone was paired, the connection was set, it would start to connect but then just die.

I checked to see if a new version of USBmodem was available. It was. I went from 1.50 to 1.56 and set it into background mode and disabled the built-in DUN through the software.

Presto!!!! I now have connectivity via my phone.

+1 for Treo700p & N800 on Verizon Wireless

If I can be of any help, just ask.

Now I just have to sync my contacts