Hanging back. Too many unknowns at this point.
1. Does the controller have the ability to hold an iPad mini?
Doesn't look like it. According to DJI Specs, Max Mobile phone size is 180×86×10 mm (Height×Width×Thickness) . Ipad mini would be 203x135x6. As noted above, I'm sure we will get some aftermarket solutions fairly quickly.
I fly with my ipad mini about half the time, phone the rest of the time. I wish the mini was compatible right away, but not too worried about it in the short term.