The PSP is set to be the most hacked handheld console every and thats a GR8 thing
here are a list of the emulators currently available
GAME BOY COLOUR
MASTER SYSTEM / GAMEGEAR
Megadrive / Genesis
NEO GEO CD
NEO GEO POCKET
NES
SNES
And for PC users looking to emulate a PSP
The PSP was hacked quite early in its life and includes a way of viewing ebooks <using JPGs made from a doc and viewin them with the psps file viewer>
http://psp-news.dcemu.co.uk/ebookspsp.shtml
here are a list of the emulators currently availableEmulators
GAME BOY COLOUR
MASTER SYSTEM / GAMEGEAR
Megadrive / Genesis
NEO GEO CD
NEO GEO POCKET
NES
SNES
And for PC users looking to emulate a PSP
The PSP was hacked quite early in its life and includes a way of viewing ebooks <using JPGs made from a doc and viewin them with the psps file viewer>
http://psp-news.dcemu.co.uk/ebookspsp.shtml