JavaGear ME is a highly optimized Sega Master System and Game Gear emulator for Java enabled mobile devices. It is based on the original JavaGear, but significant portions are completely rewritten. Compatibility is also higher.

Changes:

Improved Emulation Accuracy:
Fixed interrupt issue where VBLANK could be taken within instructions.
Fixed Back To The Future 2. (Not that you’d ever want to play it.)
Fixed Bonkers Wax Up!
Both games tried to perform an invalid memory read.

Bug Fixes:
Fixed PAL/NTSC bug where mode was not always correctly set.
J2SE: Made this version scale screen by default

Thanks to http://www.aep-emu.de for the news.

http://www.javagear.co.uk/index.php