Just wanted to share a little info on PDANET . If you tether your TB to a PC using PDANET, you CAN actually make calls while surfing. An easy non root way of using your unlimited data plan.
I was at a VZ store and asked them about the wifi hotspot the TB offers and was told you can NOT talk and wifi tether at the same time.
Plus wifi Tether for the TB will be $ 30 / month. Not so sure I want to do that... Don't want to root right now as I'll loose everything too, so for now that's not an option although I would love to hear if wifi tether is able to support infrastructure on the TB.