Why only GB/GBA? Mister FPGA support lot's of cores which can use the same Screen and controls: NES, SNES, various Sega consoles, C64, MSX etc.
And any cheap Chinese retro-console of the same sort support even more of them. So from a practical standpoint I don't see any advantage of this (no doubt cool) project.
And any cheap Chinese retro-console of the same sort support even more of them. So from a practical standpoint I don't see any advantage of this (no doubt cool) project.