The nowadays state of the art CFW has been updated.

http://www.pspgen.com/custom-firmware-5-50gen-est-disponible-article-190474-1.html

SNES9x Euphoria is a speed optimized version, based off the last version of SNES9xTYL by rukka.

Release notes:

The new R2.1 release fixes a bug with loading a new ROM (it would crash the PSP)

http://www.retroemu.com/forum/index.php?/topic/30-release-snes9x-euphoria-r2-bugfixes-galore/

SNES9x Euphoria is a speed optimized version, based off the last version of SNES9xTYL by rukka.

Changes:

[+] Bug where you couldn’t have more than 200 roms in the ROMS folder or the emulator would crash is now fixed. (I tested with 800 roms in there)
[+] Bug where the emulator would freeze then hard-power-off your PSP after trying to load more than 3 roms is now fixed. (I tried loading rom after rom at least 12 times with no issues)
[+] Bug where you couldn’t return to the menu after running a game is now fixed. (thank god lol)
[+] Bug where emulator would hard-power-off PSP when exiting rather than return to the Xmb is now fixed (both in file menu and main menu)
[+] Bug where the emulator wouldn’t start on Gen firmware fixed (tested by myself on 5.50GenC and Cmbeke on 5.50GenB)
[+] Possible minor speedups from code cleanup.
[+] Removed the intro screen for now. (will be configurable in the next build)

Thanks to http://dcemu.co.uk/-release-snes9x-euphoria-r2-bugfixes-galore-257239.html for the news.

http://www.retroemu.com/forum/index.php?/topic/30-release-snes9x-euphoria-r2-bugfixes-galore/

SNES9x Euphoria is a speed optimized version, based off the last version of SNES9xTYL by rukka.

Thanks to http://dcemu.co.uk/-release-snes9x-euphoria-r1-speed-256444.html for the news.

http://www.retroemu.com/forum/index.php?/topic/13-release-snes9x-euphoria-r1-speed/

DaedalusX64 is the continuation of the original Daedalus PSP port by StrmnNrmn and other contributors. It is a GPL Open Source project.

Changes:

[~]Fixed a compiler warning
[!]Fixed Batch Test framework to not need Asserts to compile [Bug #47]
[~]Fixed typo on the Advanced Options Menu [Bug #53]
[!]Fixed Paper Mario not playable for more than ~30 seconds [Bug #44] Note: Still has freezing issues just not as often]
[~]Leveraged similarities between the PSP and N64 Float registers [Smaller Code] Note: More work to be done with other registers
[~]Reverted part of changes in 432 so KnownValues are handled again. [Small speed-up under certain circumstances] Note: Need to finish testing these so faster code is earlier in logic

This release is mostly to fix stability issues.

Thanks to http://www.aep-emu.de/PNphpBB2-file-viewtopic-t-13669.html for the news.

http://forums.daedalusx64.com/viewtopic.php?f=52&t=1199

Mediumgauge has updated PSP Filer, which is a file explorer with a bunch of extras – The author is accepting donations, so please consider donating if you use this tool!

http://www.geocities.jp/mediumgauge/

PCEP is a PC Engine / TG-16 emulator for PSP.

Thanks to http://www.aep-emu.de/PNphpBB2-file-viewtopic-t-13664.html for the news.

http://www.psp-ita.com/?module=news&id=32469&view_reply=1

PSPKVM is a Java 2 Micro Edition (J2ME) CLDC/MIDP Emulator for the Sony PSP.

Changes:

Bugfix: ‘zombie midlet’ bug in which marked, removed midlets would reappear on a subsequent move has been fixed. Loading code has also been modified to allow loading of the folder system in the AMS even after a crash due to this bug. If you got locked out of your VM because of this, using this build will let you back in.
Bugfix: missing utility/symbols file no longer brings down the VM when opening virtual keyboards using it.
Bugfix: unused menu items removed from Danzeff board.

http://sourceforge.net/apps/trac/pspkvm/wiki/TestBuilds

DaedalusX64 is the continuation of the original Daedalus PSP port by StrmnNrmn and other contributors. It is a GPL Open Source project.

Changes:

[+] Re-enable optimization of JAL, JALR in the PSP code generator (Small Speed-up)
[+] Optimized ADDIU logic in the PSP code generator (Small speed-up)
[+] Simplify some logic for the Dynarec (Very Small speed-up)
[+] Added “Advanced Options” menu containing containing options that generally break more ROMs than they help. (Also for testing and bug reporting)
[!] Fixed saved Controller Configuration not being loaded on ROM Initialization (Bug #25)

http://forums.daedalusx64.com/viewtopic.php?f=52&t=1199

RACE PSP is a Neo Geo Pocket (Color) emulator for PlayStation Portable. This version of “RACE PSP” is maintained by Takka and should not be mistaken with “RACE PSP” maintained by Akop Karapetyan ( http://psp.akop.org/race ).

Thanks to http://www.aep-emu.de/PNphpBB2-file-viewtopic-t-13633.html for the news.

http://takka.tfact.net/blog/?p=944