Yoshihiro has certainly been busy. He has reelased an update to his XGEN Updater & XGEN Pandora DCv8 Converter. Now up to version 2, Yoshihiro has made a few changes to improve it and also adding support for flashing Original Firmware 6.00.
XGEN Updater V2 & XGEN Pandora DCv8 Converter V2 Changelog:
Added on XGEN Updater:

Now you [...]

Yoshihiro has released Version two of his Game Decrypter for PSP games that require firmware 5.55 and firmware 6.00 to run. This application allows you to patch the firmware 5.55 and firmware 6.00 eboots in order to run on custom firmware 5.50 GEN-A to B2. It allows you to also run 5.55 and 6.00 FW [...]

Its out!, Download is below. You’ll Also need UMDGEN 4 for this. Decrypts both Firmware 5.55 games and firmware 6.00 games. But not all of them work due to some headers on the prx files.

Edit: Game Decrypter Version 2 is out! Grab it here: Game Decrypter V2
Release text and how to:
..:::Yoshihiro’s 5.55 & 6.00 games [...]

PSP Developer Yoshihro has released his XGEN UPDATER and Despertar del Cementerio v8 (DCv8). This tool will install Custom Firmware 5.50 GEN-B2 directly onto your compatible PSP without any patches or having to run the 5.50 GEN-A installer etc. It also has an option to install XGEN Pandora. Please note in order to install 5.50 [...]

Update: DaedalusX64 Alpha Revision 432. Just released.

DaedalusX64 Team have, yet again released another update to their popular N64 (Nintendo 64) emulator for PSP. Keep the updates coming guys! Whats new? A bunch of speed hacks/tweaks and improvements for various games as noted in the change log below.

DaedalusX64 Alpha Revision 432 changelog:
[!]Reverted most of the [...]

Total_Noob is back again with his Ultimate VSH Menu Revision. This PRX Plug-in replaces the standard M33 or GEN VSH Menu with Ultimate VSH. Which ads a bunch of extra new features to the existing M33 or GEN VSH menu. It works with Custom Firmware 5.00M33, 5.02GEN, 5.03GEN & 5.50GEN. With handy features like screen [...]

Yoshihiro is back and with yet another speed increase for DSONPSP the Nintendo DS emulator for PSP. Its a port of DeSmuME which is a multi format Nintendo DS emulator. Notable changes are a new cursor has been added with two colors, plus a further speed increase and a few bug fixes. Keep the updates [...]

For those of you that have already posted and suggested there might be Custom Firmware 6.00 M33 on the way, will be slightly disappointed. As Alek, the admin of dark-alex.org has posted that CFW 6.00 M33 isn’t planned and not to ask for it.
Quoting Alek’s PSPWiki post:

Please, don’t ask here, the Blog, IRC, etc for [...]

As predicted today Sony released PSP Firmware 6.00 which now includes updates specific to the PSP Go which is set to be released in October. While I was looking around at exactly what’s new in Firmware 6.00 there is nothing too special too report. There are a few new theme colors and really that’s about [...]

Custom Firmware 5.50 GEN-B2 has been released by the PSPGen team. This release is a bug fix release that fixes a compatibility issue with Despertar del Cementerio. You need to be on Custom Firmware 5.50 GEN-B in order to taken advantage of this update.
Custom Firmware 5.50 GEN-B2 Changelog:

Fixed bug that prevented the launch of an [...]

Update: DSONPSP v0.6 and source code has just been released.
Changelog DSONPSP v0.6:

SpeedHack ARM9VBLANK
Fixed glitch bug inside many games; some weird cubes…
Fixed game lag freeze, like in Yoshi Island
Save game fixed; now Bleach DS works and many others
Source code updated

Yoshihiro is back with another update to his Nintendo DS Emulator for PSP, more game / [...]

This news came in from a source that wishes to remain anonymous, according to this individual’s email there are already reports that the apparent 5.55 firmware to block Custom Firmware from having games run from memory sticks has already been broken.
For example the recent Soul Calibur Broken destiny, reportedly wasn’t working on Custom Firmware [...]

kgsws has released his second update to DOOM Legacy, which lets you play the classic fps DOOM, DOOM 2, and Heretic on your PSP while on the move. The major update is all 3 games are now using hardware rendering, not software so its very smooth and looks awesome!
DOOM Legacy second update by kgsws changelog:

GU [...]

Update: Due to our testing and the fact the original install file included an Mp3. We have labelled this Custom Firmware 5.55 TMX-1 nothing but a cheap fake. PSP-1000 users result in the same thing. Nothing. Shame on Team MX…. If its not a fake, by all means prove us wrong Team MX.
-vshetc
–cptbl.dat
–index_01g.dat
–index_02g.dat
–index_03g.dat
–MyProg.exe
–unins000.dat
–unins000.exe
None of these [...]

Alek, the forum admin of dark-alex.org has set the record straight on their PSPWiki site. That Dark_AleX is not leaving us and quitting the PSP Scene. Also that the Dark-alex.org forums were closed due to costs. Not for other rumored reasons.
Quoting Alek’s post:
This really isn’t “Wiki News” but seeing as there is a traffic increase [...]

PSP Firmware 6.00 has just recently been released to PSP developer’s, for the testing on PSP tool units and development kits for future PSP releases. It certainly seems firmware 5.55 and firmware 5.70 were simply releases to thwart further security bypasses / exploits, like the recent MOHH Exploit.
Since Sony have released this firmware 6 [...]

Sad to see, but the administrator Alek of the Dark-Alex.org forums has decided for the better. To close the forums, after a year of service to the PSP community. Its sad to see, I certainly hope Dark Alex hasn’t quit for good either, as some have rumoured he might have…I guess time will tell if [...]

Yoshihiro is pretty quick with the updates to DSONPSP the Nintendo DS Emulator for PSP. Beta 4 is now out and features more speed enhancements, as well as the source code for anyone wanting to take a look.
Changleog:
DSONPSP based on DESMUME core v9 by yoshihiro
Changelog:
-Speedup.
-More Fixe game freeze.
-Source Code For PSP not cleanned and not [...]