Gentoo For Zaurus is a port of the Gentoo Distribution to the Zaurus PDA. It can be mounted over NFS so no changes to a current configuration are needed. It includes a native gcc environment for ARM, the zgcc-3.3.1 cross compiler for the main PC with distcc configured so that the main PC does the actual compiling, and X11 for testing applications.
ThePacketMaster Linux Security Server is a CD-based security auditing tool that boots and runs penetration testing and forensic analysis tools. It is handy for security auditors. Some tools included are nessus, ethereal, The Coroner's Toolkit, chntpw, and minicom. It includes modules for any Linux 2.4.20 SCSI driver.