I'm still hoping that the XU4 still gets as much love as the Pi. I really wanna stick with Recalbox as I love it and made a app for it. However, if things like the GPIO stuff doesn't get sorted will have to consider moving to other images like the custom RetroPie image designed specifically for the XU4.
Cummon guys - I know you can do it - yer the best for Pi, just make sure you keep the XU4 stuff on a par - know how hard you all work.