I got an iPhone 4 when they first came to Verizon. When Verizon launched them, they offered fully unlimited data for the $30 that they offer their basic data now. That unlimited data option has stayed on my iPhone, now through my 4S. Now, I may need mobile hotspot in the near future. If I add it on my iPhone, will it kill my unlimited data plan and revert me to a current data plan? I'd call and ask Verizon, but they either don't know or will blatantly lie to you on the phone, so I thought someone here might know better.