PSP Custom Firmware 3.93 ** warning ** Use at your own risk

This just recently popped on the scene, by an anonomous party. It appears to be based off of Dark Alex's m33 firmware, I am basing this solely on the implementation of the recovery menu with some extras and some other cues. I have not personally tried out this release yet (no charger for my psp thanks dog), but many have and said it works, but there are some complaints of bricking so I must insist use this at your own risk.

Here is an awesome new feature

VSH Recovery

The principal innovation of this Custom Firmware is the VSH Recovery. This tool is formidable is. It enables you to launch the Recovery instantaneously, to make the changes, and to return to the VSH as if nothing were not.

• No reboot is necessary, the changes are made "one the fly" (except for activation/deactivation of the plugin of the VSH.TXT, which requires a reboot).
  
  
• To start the VSH Recovery since the VSH, support simply on Select. To leave it, choose exit to VSH or press on R.

You can even hide your MAC address on the system information screen.

To be able to change the MAC address, it is necessary that the plugin Sysconf is changed. For that, go in your parameters systems (for example), that will change it plug-in, and thus will allow you to activate, or not, MAC protection. If you do not do it, that will not function (but will not make plant the PSP).

Note: this warning has come from PSP-Hacks.com

!WARNING! Press “X” when the official updater finishes; if not, you will have a brick.

You can learn more here (note: Language is French)
You can get all the files over at psp-hacks.com