This is a really nice idea.
The only downturn: i think that the edges are too narrow, so that your palm-nerves will get irritated when playing for a too long time.
Hello everyone, I dream of reviving my childhood memories with a modded Gameboy Classic aka Gameboy Zero. It should be a mod (Raspberry Pi3 or Pi Zero) of the original Gameboy Classic in gray with A, B, X, Y buttons (original maroon colour on all 4), L, R triggers on the back, USB-in, micro-USB char...