After E3 I was thinking about some of the games coming out for PsP and there really are alot of amazing games being made available. Resident Evil for one is something I'm really looking forward to, I'm interested to know how they are gonna get the buttons and movement viable on the the PsP controls.
I'm not so sure about the final fantasy game for psp. Dissidia (or whatever its called) doesn't really seem like an rpg to me.....it seems more like a crazy kind of beat em up.
Gran Turismo 4 looks awesome on the psp, I imagine the controls will be fine. They said something about it having 800 cars to choose from, which is majorly impressive for the PsP version.
They have rereleased FFVII on PS3 and PsP, i'm tempted to get it for psp as i'm spending more time on that at the mo + it would be a great game to play while i'm on holiday 
All for now,
Peace,
Icey