RetroN 5 is officially a thing, apparently

[Leo_A]

"Our aim is 100% compatibility". The only way to achieve that through clone hardware is through emulation, which means a computer.

Why is that? A emulator is merely a computer simulation of the hardware. If their recreation of the original hardware ever got good enough, they could do it with hardware.

Certainly the Super Nintendo side is pretty darn close already with clone systems. Not sure why the NES side never seemed to improve by much over the years, but I assume that for every complaint at a classic gaming forum, there were a dozen satisified customers that either never noticed any issues or felt that they were minor enough to not detract from the experience. So probably not much incentive to overhaul a NOAC design to improve accuracy.