[In Development!] TLE-BU is a complete backup program for Linux. It's focus is on ease-of-use, while remaining flexible. It uses it's own internal web and PostgreSQL servers for ease of install and removal and to avoid conflict with existing software
tardiff is a perl utility that enables easy patch creation for two different versions of a build/install tree in tarball format. tardiff uses advanced mechanisms to determine differences (visit homepage for a thorough description).