Well, this is just recently released, and it is SICK.

Basically, you can use this PRX to load any custom resources off of your memory stick. Fonts, RCOs, Pictures, DATs, anything you can think of that is usually loaded from Flash1/VSH, can be loaded from the memory stick instead.

It loads everything from ms0:/PSP/VSH

Attached to this thread will be the PRX, and also a converter to convert True Type windows fonts to .PGF PSP fonts. Basically, you can take any windows font, run it through the attachment "Makefonts.bat" and it will output a font with the same name .pgf format. Rename the font to "ltn0.pgf" without the quotes, place it into PSP/VSH, and make sure the PRX is enabled. This means you can have WHATEVER FONT you want on your PSP. This will also work for the more advanced users with RCO files, and things of that nature

Included are the PRX release, and the font converter for the nublets. Enjoy!

(you can only use one custom font at a time because it MUST be name ltn0.pgf, just replace with a new font whenever you want a new font )