It depends I think on this, I have been a VZW "Unlimited BroadBand Access" Customer for many years now. My account is Grandfathered as True Unlimited Access, as that was the plan I signed my contract on. I have upgraded my device a few times over the years and have not lost that status on my BroadBand Account. My Bill even States, "Unlimited Access". Most of the new plans are listed as 5gig Max accounts. I have even heard of the Unlimited account being transferable too. But once deactivated, The Grandfather status disappears.
We can only hope that since they sold us all "Unlimited Access" on our smartphones, that these also get GrandFather Status too. Only time will tell.
I can tell you this, that VZW can throttle back your connection anytime they want to. They are suppose to have this option in their system. So you only access their network at slower speeds / less data use. I have not had this happen to me yet, but have heard it happening to others. I very seldom cross the 5 gig line though. I come close often. I only use this CDPD Modem (3G, REV-A) while on the road for work. Very seldom at home.
