Nintendo - GameBoy Emulators

Name	Description
AmiGameBoy	A very good GameBoy emulator based on the code from AmiMSX2. Although not quite as good as Wzonka-Lad overall, it can be faster on some systems. This used to require registration, but is now freeware and open source.
AmigaVGB	A port of Marat's emulator, VGB, to Amiga. Specifically, this was ported from the Unix version because the other available port wasn't working properly on the author's computer.
AmigaVGB PPC	Another port of VGB, this one to the PPC.
GBE	Not much information is given about this emulator, but it appears to be pretty good.
GBUK	One of the first Amiga emulators, but certainly not the best. It has no sound emulation.
Wzonka-Lad	This is the best GameBoy emulator for Amiga, but it's shareware.

Nintendo - GameBoy Emulators on Other Platforms

Windows/DOS (57)
Unix/Linux (9)
BeOS (3)
Macintosh (6)
Consoles
-- Gamecube (1)
-- Playstation (1)
-- MSX (1)
-- Nintendo 64 (1)
-- Game Boy / Advance (3)
-- Nintendo DS (2)
-- Game Park 32 (4)
-- Wonderswan (1)
-- Nintendo Wii (2)
-- GP2X / GP2X Wiz (1)
-- Dingoo A320 (1)
Java (7)
Palm OS (4)
Pocket PC (4)
Digital Phones
-- iPhone/iPod Touch (1)
-- Google Android (3)
-- Symbian OS/ NGage (6)
Calculators (2)

Emulators For:
Windows/DOS
Unix/Linux
BeOS
Macintosh
Amiga
Consoles
Java
Palm OS
Pocket PC
Digital Cameras
Digital Phones
Calculators
QNX
Windows Mobile Smartphone
Microsoft Silverlight

Other Releases
Extenders
Frontends
ROMs (Public Domain)
Hacks
Cheats
Movies
Savestates
Music
Technical Documents
Translations

Utilities:
General
Auditing
Cheating
Development
Game Modification
Music Playback / Manipulation
Plugins