Big LuaPlayer

Lua interpreter for PSP.

OneMangaPSP

Manga reader. Depends on a now defunct website.

Bitmap Hunter

Homebrew app for PSP.

Cheatworks PSP Type S

Homebrew app for PSP.

Music Downloader

Homebrew app for PSP.

CalculMp3

Calculator app for PSP.

Chess Clock aka Game Clo

Chess clock for the PSP.

UMD Dumper #Opt

Homebrew app for PSP.

Choice

UI shell for PSP.