Choice+ is a graphical user interface shell for the eLoader from Fanjita & Ditlew, the eLoader allows owners of Sony's PlayStation Portable device to run home written software and Choice+ provides a nice user interface for the eLoader to make selecting what home made written software to run on your PSP device., we fully support the open source community and will continue to do so by opening up some of the source code that went into the making of Choice+ and Choice+ lite.
I got that from his site here