Homebrew is getting better and better on Version 2.00 PSP's... So far these have been confirmed running using the new 0.4 Eboot loader -
AOTM
PSPong
PSP Blackjack
Original JP Tetris
BMP loader 0.2
PSP Mandel Explorer 1.0
PSP-QUAKE
Casino Addict
SMS PSP Emulator
PSP Calc Ver 0.1
PSP SimpleTurn
PSPectrum V01 (succesfully ran 'Ghosts n Goblins' sna)
PSPaint
SNEX9X 0.2
list from pspupdates.com
AOTM
PSPong
PSP Blackjack
Original JP Tetris
BMP loader 0.2
PSP Mandel Explorer 1.0
PSP-QUAKE
Casino Addict
SMS PSP Emulator
PSP Calc Ver 0.1
PSP SimpleTurn
PSPectrum V01 (succesfully ran 'Ghosts n Goblins' sna)
PSPaint
SNEX9X 0.2
list from pspupdates.com