ipad is not the best option for live viewing for phantom 3. Under bright sunlight, you can not even see the screen. use 1000 cd/m2 7" hdmi monitor is the best option, plus any mobile phone just for view map and camera setting.
Ipad is not so bad. Just use a sunshade or umbrella and you are fine.
iDevices do not support HDMI-in , so no. In fact, neither do Android devices. I think I've come across 1 Android device that supports HDMI-in, but it was the size of a monitor so may as well just get a monitor.Will an Apple supplied HDMI adaptor work and do they the required cables? If not Apple, who sells them?