Another GBA /Gameboy emulator for Android, my GB faves are Super Mario Land and Super Mario Land 2, both awesome games, heres the release news:

Nintendo GameBoy/GameBoy Color emulator for Android has been updated. Changes:
- Released free VGB 5.3 for Windows and Linux.
- Switched to DropBox APIv2. DropBox support works again.
- Use "Settings | General | Reset All Settings" to remove old DropBox token.
- Fixed a few bugs in the DropBox code.
News source: