Statistics modules in Perl Data Language, with a quick-start guide for non-PDL people. They make the PDL shell work like R, but with PDL threading (fast automatic iteration) of procedures including t-test, linear regression, and k-means clustering.
IPAT-S is a scenario modeling language. Use it for rapid development of quantitative strategic scenarios for governments, agencies, businesses, etc. using a fast and compact interpreted language. Package includes IPAT Studio development environment.
What happened on this day in history? Lists event and birthdays for a given date. Includes plenty of starter data, or add your own. Displays date in multiple calendars such as Hebrew, Mayan, and Shire (LOTR). GUI, CLI, web interface.
siggen is a cool email signature generator for encrypted ansi c (confused), brainf*ck, ... signatures. Use it in combination with vi(m), emacs, mutt, pine, or what ever. (tested on Solaris, Linux and Windoze). Optimized only for geeks :-)