I have Verizon VX9800 and it works well with my TCH. This phone will not let you transfer the entire contact at once but rather one at a time. I'm trying to figure out if the version 2 (current software update) of the VX9800 will let me do that. I don't think it's a problem though I may try doing it via a file transfer through my laptop but I'm too lazy. It would be nice if the NAV system has a usb capability.

I havn't tried this yet but you can probably program two bluetooth phones with the "User" option on the TCH. Since you can program 3 users in the TCH, you can use 1 user for your phone, 2nd user on the 2nd phone, 3rd user for both phones (when both phones are in the TCH at the same time). I think I'll try this to see if it works.