Over at the QJ.NET Forums, PSP homebrew developer shadow77340 is letting everybody know about the release of the Pspsokoban homebrew game. This game is a port of mariosokoban, and follows pretty much the same rules as traditional Japanese sokoban - the player's objective is to push boxes (or blocks) into a designated location within a maze; players are only allowed to move one box at a time. As for the gameplay controls:

• Circle: View stat
• Triangle: Level restart
• R: Return to main menu
• Joytick and pad: Move
  

• Sped up the game
• PSP Clock speed is set to 111mhz during the game, but set to 333Mhz in the menu (for faster loading)
• Add 9 more levels
• EBOOT is now smaller
• Press CIRCLE to display game statistics (number moves, score, levels & characters)
• Press R to save the latest score in data/score/dernier_score.data.
• Be aware, it doesn't save the best score, but only the last score.
• Home button works now properly
• Added a new menu (by Cloos)
• Sped up level loading
• Joypad is now fully supported
• In the option menu, the last score is displayed