A new release of this Nintendo DS emulator for PSP is available. These are the changes:
Beta 6:
- SpeedHack ARM9VBLANK
- Fixed Glich bug inside many game some wierd cubes
- Fix Game lag Freeze like in Yoshi island
- Save game fixe now Bleach Ds work and many other .
- Source code updated

You will find it
here.
via EmuWiki.com