Received my Mavic Pro just hours ago today, and coincidentally, I was meeting my friend who helped 3D print the tablet holder for me. Here it is in action. Credits to the guy who shared the file on Thingverse. Sorry I can't remember your name :/
The mount
Side view
With iPad mini 4
Tablet rests on hands
So far I prefer the bottom mount as it doesn't block the RC's screen. I haven't flown the Mavic yet so I'm not sure how useful the RC screen will be. I might switch to the top-oriented mount if I decide that the info on the iPad mini is sufficient.
The mount

Side view

With iPad mini 4

Tablet rests on hands

So far I prefer the bottom mount as it doesn't block the RC's screen. I haven't flown the Mavic yet so I'm not sure how useful the RC screen will be. I might switch to the top-oriented mount if I decide that the info on the iPad mini is sufficient.