Hako PSP, google that, although it uses Megaupload I think.
Anyway, there's the English version of FF: Dissidia, the up
coming Soul Calibur game. For released ones, I enjoyed Ace Combat,
Tekken. And try Haku Mitsune - Project Diva, if you like rythmn
game. There's always those Namco collection for mini-games.
I do dislike the sprite-like nature of most PSP RPG
games...
I think other than games, you can use the PSP to try new things,
such as downloading those mods that lets you play your own music
while ingame, changing custom theme. But best is CWCheat lah
<.<