Homebrew developer Dark_AleX jumped through every PSP firmware loophole. He reigned supreme, and his homebrew firmware actually gave PSP owners a reason to pick their portables up. His reign, though, is over. Dark_AleX is quitting the homebrew scene, and his "open edition" firmware will have no more updates. His website contains the following note in English and Spanish:

The reasons are various.
One of them is the time it consumes, which i'm losing from other...