DejaGnu - DejaGnu is a framework for testing other programs.
Time 2 - Stay focused and crush procrastination
Expect - Expect is a tool for automating interactive applications such as telnet, ftp, passwd, fsck, rlogin...
Time Tracking for Freelancers - A simple, fully integrated time tracker for freelancers
Check - Check is a unit testing framework for C, which runs on environments such as GNU/Linux, GNU/Hurd, BSD, and Mac OSX.
Timing - Timing is the best way to keep track of the time you spend with your Mac.