Somehow or other most of you guys seem to have skipped over ButterBerry's instructions in how to tether your BB8830 to Verizon using USB tether... I believe at much much better speeds. If you download the Verizon Access Manager, look at the Contents of each of the files, you will find the Blackberry files (kext files) that he refers to. If you copy these to the directory he mentioned, and then install VZ Access Manager, your tether will work perfectly! It's not rocket science...
Of course I agree that VZ Access Manager isn't the most elegant interface, speed is more important - and it works.
Yes, Bluetooth tethering via DUN worked too... at slower speeds...
I really don't understand why Verizon didn't provide this setup... they told me that VZ Access Manager would work... and it didn't. And I don't like to be cheated by Verizon!
Try it after you try Bluetooth tethering and please report back.
Kudos to ButterBerry!
Paul