via http://gbatemp.net/threads/pocketsne...update.360136/

GCW Zero owners should be happy to hear that Nebuleon has updated PocketSNES based on Snes9x 1.43. With this update games such as Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Kirby Super Star have been improved. There have also been many updates to how SRAM behaves, increased support for more games, and a fullscreen scaling mode in proper 4:3. For more information on this release be sure to check the source link below.


Source