I was under the impression that the PSP can AV in and out? Read somewhere regarding using my 10" portable dvd player as a screen, which worked amazingly with a specific cable. But while browsing for this info, i read somewhere that you can do this with the psp also... why you would want to is beside the point lol, would be great to play your classic dreamcast games or n64 on your little psp screen.
I just wanted to plug it into large screens to see the movie output and games as well as ability to record.
Gamespot will have live shows with someone with psp and wire running out and you can see it on the screen playing so it has out, just need to know what the cable is.