Now that I am waiting for my P4 to show up I got to thinking ahead and was wandering if anyone has the answer to this question. Can or do you use the same device for controlling a P3P and P3S or a P2. When downloading the Firmware on to a iPad Air 2, do you get separate GO Apps for each type of Phantom, or do you just see one GO App. I thought it prudent to dedicate each Phantom it's own iPad, but it would be nice to know before hand if one iPad can handle the firmware for each Phantom Model. So if anyone knows the answer, please advice.