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

Sony Playstation emulator for Android has been updated. Changes:
- Added experimental multitap support (4 players). Depending on the game you need to enable multitap port 1 or 2. Dont enable if you aren't going to play >2 players.
- Added xperia play touchpad support (enable on preferences-pad1-map axis)
- Optimizated opengl plugin for 2d games (Chrono cross/Valkyrie Profile)
- Fixes some core bugs (sf2 alpha, nba live 98)
News source: http://play.google.com