ScummVM (one of the best emulators on PSP) has been updated to v1.3.1

ScummVM is an emulator for "point and click" games such as Maniac Mansion, and the Monkey Island series of games.  

changelog Wrote:General:
        Improved audio device detection and fallback.
        There should be no more silent errors due to invalid audio devices.
        Instead ScummVM should pick up a suitable alternative device.
    Mohawk:
        Added detection entries for more variants of some Living Books games.
    Tinsel:
        Fixed a regression that made Discworld uncompletable.
    SAGA:
        Fixed a regression in Inherit the Earth's dragon walk code which was causing crashes there.
        Fixed a regression causing various crashes in I Have No Mouth and I Must Scream.
    SCI:
        Added detection entries for some Macintosh game versions.
        Audio settings are now stored correctly for the CD version of EcoQuest 1.
    SCUMM:
        Fixed graphics bug in FM-TOWNS versions of games on ARM devices (Android, iPhone, etc.).

Developer's note:

Wee are proud to announce a maintenance release of the ScummVM 1.3.x series. This release has a number of fixes, mainly related to audio. Also, several games had slipped past testing for 1.3.0 and turned out to be no longer completable. They have now been fixed, so if you want to play Discworld, Inherit the Earth: Quest for the Orb, I Have No Mouth, and I Must Scream, or play FM-TOWNS SCUMM games on mobile devices or consoles, wee highly recommend that you upgrade.


Attached is ScummVM v1.3.1 for PSP.
Visit the ScummVM homepage for info, and downloads for nearly every platform, including: iPhone, Windows, Wii, ect..   HERE