GoBoy by WildPalm is a freeware GameBoy Emulator for the Nokia 7650/3650. Play hundreds of public domain games on your phone!
Features:
- Emulates most Gameboy and Gameboy Color roms
- Runs games directly from Inbox
- Full ZipMan integration to run zipped roms without needing to extract
- Source code available.
(Courtesy of BrunoRodrigues)