^^^ That is very interesting.
What I'd like to see would be a wireless connection (Bluetooth or Wifi) to things like fusion brain and CarPC joy con ex. I mean, why reinvent the Fusion Brain/CarPC JoyCon if all you need is a wireless interface and a software? Interface with softare like tasker (crazy automation on Android there) and you half way through.
That's the second best thing for a black box would be a generic USB to Bluetooth interface...But it's maybe even harder than I think.