Don't know if you guys know about this, but it seems that Sony released the source code of it's BB Navigator.
--> Go "NEXT"
--> Look for the "GAME" category and select "Playstation 2"
--> Select "Playstation BB Navigator" module
--> It will show the list with the Linux packages.
I'm posting this as a matter of curiosity. Could this help the development of new homebrew apps, or improve even more the existing ones?