via http://emu-russia.net/en/

Sega Master System/Game Gear emulator for Android has been updated. Changes:
- Added configurable joystick shapes, with two alternative shapes.
- Moved invisible and wireframe joystick settings to "Virtual Joystick Shape".
- Added more options under "Virtual Joystick Opacity".
- File selector now shows hardware information, if found in a file.
- Localized all NetPlay messages.
- Added NetPlay feature letting users play with each other over network.
- Added State Exchange feature letting users swap their gameplay states.
News source: https://play.google.com