For those that have grandfathered unlimited data plans on Verizon. You do not necessarily have to lose your unlimited data plan when trying to upgrade your phone with a subsidized price on the phone. The only catch is you have to have more than one phone on your account and one of those other phones must be a basic phone. I did this when I upgraded my HTC Trophy to the HTC 8x. I upgraded my wife's phone, which is a basic phone, to the HTC 8x at a subsidized price. When the phone arrived, though, I activated the phone on my line, replacing my HTC Trophy. This did not switch me to the shared data plan, as technically, I did not change the terms of the contract on my line.