As I understand it, the hardware they’re using isn’t up to the task and it would be prohibitively expensive. The complexity is also greater but perhaps that isn’t insurmountable.
I don't know a lot about FPGAs, but I guess I just assumed that they're like basically everything else in tech where they get cheaper and better as time goes on. If that's correct then I don't see why we couldn't have a GameCube or Xbox clone system eventually.
I think this might be more important as time goes on as well. Getting cycle-accurate emulation of anything more complex than the Dreamcast I think will become pretty prohibitive to do in-software. I suspect something like CEN64 might end up being the last cycle-accurate emulator out there (though I would absolutely love to be wrong on that). The advantages of FPGAs would make themselves substantially more apparent at that point than the Gameboy or NES.
I think this might be more important as time goes on as well. Getting cycle-accurate emulation of anything more complex than the Dreamcast I think will become pretty prohibitive to do in-software. I suspect something like CEN64 might end up being the last cycle-accurate emulator out there (though I would absolutely love to be wrong on that). The advantages of FPGAs would make themselves substantially more apparent at that point than the Gameboy or NES.