Still no luck with Visual Voicemail. Rolled back to VVM 1.1.11.65, and the "Data connection is unavailable..." error persists.
Any advice?
Update: Hard Reset, used only Mike's new Verizon cab to provision, still no luck.
I may have to go back to the 2/10 release, VVM is crucial for me.
Other than that, though, this is still the best TP2 for my needs.

Thanks, Mike!