Good NDS Homebrew/Ported Emu's?

The title says it... Just wanted some good homebrew and some emulators that are for other systems and work on ds :Dkthx :D

Look here for Emulators that work on the DS
http://forum.romulation.net/index.php?topic=5002.0

Thanks :')Now im needing to know 2 thing :
do GBA roms work on nds flash cards?
and What are some good homebrew :D

for GBA games to work, you need EZ Flash 3-in-1.In terms of emulators:
Lameboy is a great Gameboy emulator (almost all games load, most games work with no issues).
NesDS is an excellent NES emulator. I haven't had an issue so far.
SnemulDS is a SNES emulator, many issues here. Only a few games work, and at that, they've got some graphical issues.
DSMasterPlus is a Sega Master System and Sega Game Gear emulator. I'm pretty sure it works well.
jEnesisDS is a Sega Genesis emulator. Forgot about it's compatibility.All of these can be found by googling the names.