Five years ago I wrote a series of articles for the Viking under the title Playing with Programming. Those articles ended with a pair on the program CA-Ref that allowed the user to explore the world of the cellular automaton or CA. CAs are examples of discrete mathematical systems. The most famous of these is Conway's Game of Life. Join us at the May Tech Topics SIG as we revisit this topic using an interesting app for Android called Instinct. In addition we will look a couple of other apps for generating fractals on your mobile device.