Because we were all asking ourselves "I wonder if Etheboss will be watching Nintendo Direct?"
Is the controller auto-select working for everyone?
I haven't tested it yet but I will with a PS4 and then PS3 controller in a tick
However if it does, you should make a download inside Nintendont for 0001.ini that makes and goes straight to the /controllers folder on both a USB and SD.
That would make everything very automated.
Something like A = Select, B = Back to games list, X = Update and Y = Download USB controller file
JoostinOnline