I am a bit confused on what the cellular iPad can do for me. I have a Droid Razr Maxx through Verizon. The hotspot is enabled on my phone with unlimited data to allow me to access the internet on my laptop. If I buy the iPad retina display should I get the cellular option? Do I need it? I do want to be able to use the iPad in the car while traveling and I give wildlife talks in places that do not have WiFi. If my understanding is correct, the iPads come with wifi which will allow you to access the internet if you are in range of WiFi. By adding the cellular component you will allow the IPad to access your cellular service, but since I have the phone hotspot already activated, am I duplicating things?