Let's see what this board brings to the game:

The joystick—soldered to the board (not a great start, if we've learned anything from Nintendo)

Six clickable contacts (tactile dome) for the A-B-X-Y buttons + orange Backbone App button + an option button

Skyworks SKY52101-11 IoT SoC (likely)

Avnera AV3425C single chip analog SoC for smart Lightning headsets

A soldered-on bumper button

A soldered-on Hall-effect sensor (Texas Instruments DRV5053) for the trigger button

A soldered-on Lightning port to pass through power to your phone, or sound to your headset