I have both slim and phat PSP. And 8GB in each, both plays ISO, but for the sake of my life, I cant get the slim to play PSOne games. I guess the slim one cant load homebrew, only play PSP ISO. But long story short, you will need to get pandora (Period)

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Xbox 360 - 2 Games - 2 Controllers - 120GB Elite - Dead
PS3 - 23 BD Games - 13 PSN Games - 9 Controllers - 320GB - Alive
Wii - 6 Games - 4 Wiimotes - Alive
PC - Overkill - God like :]
EVO - Needs new clutch & brakes :[

Gaming Generations | XnogarD Production - Soon!!!