libosk is an easy to use, 100% configurable on screen keyboard for applications written using libwiisprite, written by beardface. Changing language, look and feel, etc... can all be accomplished simply by modifying a config file. Read more
Box2D is a 2D rigid body simulation library for games. Programmer's can use it in their games to make objects move in believable ways and make the world seem more interactive. From the game's point of view a physics engine is just a system for procedural animation. Rather than paying (or begging) an animator to move your actors around, you can let Sir Isaac Newton do the directing. Read more
Pstros NDS is a MIDP implementation running on the CLDC java machine compiled for the Nintendo DS. It allows you to run some java programs and games written for the mobile phones on your NDS. Read more
Lockdown allows you to password protect your PSP from prying eyes. It also protects the Recovery Menu so that the protection can't be disabled without considerable effort (or by unbricking). Read more