melonDS - A Nintendo DS emulator with support for commercial games.
RetroArch - RetroArch is a frontend for emulators, game engines and media players.
Mednafen - Mednafen is a portable, utilizing OpenGL and SDL, argument(command-line)-driven multi-system...
Drastic - Drastic is a Android DS Emulator
VisualBoyAdvance - VisualBoyAdvance (VBA) is a free software (GNU GPL) emulator targeted for the Game Boy, Super Game...
gpSPhone - gpSPhone is a Nintendo Gameboy Advance emulator for the iPhone and iPod Touch.