fail0verflow began distributing their source code and tools today, via their git. Here is what the team had to say about their git, "some tools for ps3 files. expect some fail, this is still WIP!"

fail0verflow git: http://git.fail0verflow.com/?p=ps3tools.git

Some of the tools are as follows:

sceverify: verify SCE binaries
pupunpack: check pup hmacs
puppack: create PUP files from scratch
norunpack: extract files from a NOR dump
unself: convert fselfs back to elfs
makeself: convert ELF files to self files
makepkg: build update.pkg files
readself: read and output info regarding a self file
unpkg: decrypt and unpack update .pkg files

Source: PSX-Scene