A POSIX GUI file viewer capable of displaying manual pages and maintaining document meta-data (highlighting and bookmarks) per user per file; a local socket server for easy integration with other software, text can be processed with shell commands.
Automated Computer Auditing Daemon - Keep a track of what's going on with your systems: suid, sgid, world writable, hidden and unowned files monitoring as well as important file's md5sums management audits sent to your mailbox on a regular basis.