A new GBA Emulator for PSP has been released, heres the details thanks to pspitalia:
It 'was just released a new update for the Game Boy Advance emulator gpSP-J, as amended and improved by an unknown Japanese coder, dell'Unofficial developed by Takka gpSP. Usual incomprehensible changelog does not allow us to know the new features introduced with this new release. We may think that there have been improvements related to the stability genereale emulator. You just need to personally test the program and assess any progress.