Joerg Jahnke has released an updated version of JMEBoy. JMEBoy is a Java-based Gameboy and Gameboy Color emulator for mobile devices. If you want to play Gameboy games on your mobile phone you should try this emulator.
Release notes:
The binaries of the final releases for JMEBoy 1.4 and JSwingBoy 1.2.13 have been added for download. These releases are built from the code of HG revision 389. These releases add the option to transfer saved game states via Bluetooth between mobile devices or between a mobile device and a PC. Please take a look at the release notes for more information on the changes. Choose the emulator download according to the desired target platform: – JMEBoy runs on Java-enabled (MIDP 2.0) mobile devices. – JSwingBoy runs on PCs with a JDK/JRE5 or later installed.
Plenty of free GBC homebrew ca be found here: http://www.pdroms.de/files/gameboy/
AEP-Emu (DE/EN)
DMG Page (DE)
EmuBit.pl (PL)
HomebrewWelt (DE)
Indie Retro News (EN)
NintendoMax (FR)
PlayerAdvance (FR)
Retroguru (EN)