Questions regarding the P4P+ controller,
What is the HDMI port for, watching on a separate display while flying, or doing something afterward?

Is the SD card automatically detected, or do you have to assign it for something?  What data gets stored there?

What's the USB for, plugging in a tablet that overrides the built in display? Or connection to a PC?

What's the micro USB for, see above.

Not much detail I can find that describes usage for these.

It would be nice to override the built in display with iPad or something, is this possible?

Questions regarding the P4P+ controller,
What is the HDMI port for, watching on a separate display while flying, or doing something afterward?

Is the SD card automatically detected, or do you have to assign it for something?  What data gets stored there?

What's the USB for, plugging in a tablet that overrides the built in display? Or connection to a PC?

What's the micro USB for, see above.

Not much detail I can find that describes usage for these.

It would be nice to override the built in display with iPad or something, is this possible?