Gladius
From PHWiki
Gladius is the author of PocketSPC, an SPC player for the Nintendo DS. This technology is used to emulate the sound chip for SNES DS.
He has also created a semi-working SPC emulator for the GBA. See the SPC Emulator project page
In addition, he has ported Snezziboy over to the DS, creating SnezziDS.
