yash.c: A simple thought experiment: How small can we have a usable *NIX shell?

Countdown: PalmOS application which determines how many days there are between
           the current date and any other date. (From early 2000) GPL

Ear1001.zip: An ear training program for the PalmOS (Written fall of 1999;
             final release done in early 2000) GPL

HeartBeat: Simple PalmOS application which beeps once, waits 15 seconds, and
           beeps again.  Useful for checking pulse. (From early 2000) GPL

dice: *NIX application which simulates the rolling of a given number of 
      6-sided dice, adding the results together.  (From August 2001)

flower: *NIX application which generates flower shapes as povray 2.x scene
        files; I don't know if these scene files are povray 3.x compatible
        (From fall of 1995; minor change in 2001 so it compiles again)
        GPL.

kiwi: Spam filtering application which changes the outgoing email address
      every time an email is sent to an untrusted party.  For *NIX systems.
      (Version 1.x from Fall of 1998; 2.x written in Summer and Fall of 2000;
       final 2.x release done on October 17, 2001).  Public domain.

xkook: Set of scripts which are designed to handle newsgroups which have
       a resident net.kook.  The scripts do two things: Delete any and all
       replies to a given net.kook's posting, and send an auto-reply
       to anyone who a) replies to the kook b) Has not received the 
       auto-reply yet (from Feburary 2003) GPL and other licenses