Ive just updated the GPF Coder site here at DCEmu and for those who dont know GPF or Troy Davis was the coder a host of great projects mainly on the Dreamcast and Nintendo DS, heres his releases:

Dreamcast

Emulators
gpSPDC(GBA Emulator)
RACE DC
DOSBOX DC
DC NeoPop
DC Nin64
Visual Troy Advance
Games
CloneKeenDC
OpenJazzDC
Cars DC
Lord of the Rings
Marfitude
REminiscence
Another World (AW/DC)
Super Mario Wars
Text Text Revolution
Trampalien Gunmen DC
YASFCave v1.0
Libraries and Dev Tools
DC Tool
DC Load

Nintendo DS

Emulators
FrodoDS(c64)
NeoPop(NeoGeoPocket)
Games
Duke3D(S)
REminiscenceDS(Flashback)
NDS YASFCave
XrickDS
Super Mario Wars DS
Defendguin DS
robotfindskitten DS
Libraries and Dev Tools
SDL libraries
romdiskfs library

And still more, check them out at --> http://gpf.dcemu.co.uk/