Text taken from it’s original post at PS2dev.org. Thanks to wraggster for the news.

Hello folks… Using various pieces of code/art from many people (VBA Emu browser, pspsdk samples, pochi style backgrounds [http://pochistyle.pspwire.net/]), I wrote for myself a tiny file browser to : – Browse the memory stick – Enable the USB connection without exiting the tool (and so update the files) – Run 90% of the homebrew apps (emus, games, tools… located on the memory stick) available on the psp directly from the tool (I hate all those slow icons from the PSP OS + %, ~1 directory names, I prefer one then a browser 😉 ) As it is a”private”tool, it is not very nice, not very powerful, not very allwhatyouwant, but really saves time for me 😀 So feel free to use it…. the code is pspsdk compliant and available on request if somebody wants to improve it, fix bugs (home :D)… Keys : X : select, run O : cancel ^ : dir up R1 : USB on/off Home : direct exit 😀 the callback makes me mad…

http://forums.ps2dev.org/viewtopic.php?t=2693