I recently added the timemachine application, so i can play all the older, nice homebrew. I can't think of what to do on my psp, and yes, i can be specific. Here's what i have right now:
-Quake for psp
-Iso's (don't discuss here, please)
-Snes (someone tell me some good games, please)
-Gba and gbc
-playstation store (sexy)
-freeradio (by freeplay)
Basically, i'm looking for some good, old homebrew, whether they are applications or games.