Copier emulation would be extreme. ;-)
But adding features would be awesome. I do know a few things about coding (I know C and ARM asm) but that is of little use on the SNES. How difficult would it be to add HiROM support (probably very hard)?
I just got my BIOS running in ZSNES (wohoo!). It's a Super Disk Interceptor BIOS (I don't think even GoodSNES detects it). I'm not even sure if my copier supports an upgradable BIOS, but would it work if I just copied the BIOS as a normal ROM and ran it like that? The BIOS under an emu says "02 FDC ERROR 00", probably due to the lack of a floppy disk. Do you have any tips for BIOS haxoring?