You have a section for the DS. Which is cool. I have a Homebrew-able DS.
But it seems you don't have one for the PSP...

PSPIRC - A PSP Application that allows users to access IRC from the PSP.
Its very self explanatory, and I use it to get on here sometimes too.

Link: http://zx81.zx81.free.fr/serendipity.../56-IRC-Client


You need a PSP with CustomFirmWare (CFW) to use it.

-Installation - Extract it, and copy the folder with EBOOT.PBP to your /PSP/GAME folder.