In SX Microcontrollers, SX/B Compiler and SX-Key Tool, JonnyMac wrote:

JonnyMac --> nick-name for Jon McPhalen --> professional name for the actor also known as Jon Williams, former Parallax employee.  The Screen Actors Guild reminded me that there's already a famous Jo[h]n Williams (the Star Wars composer guy) and that I needed to pic a new name for my acting work.  The only people who know me as Jon Williams anymore are those in the electronics world; most of my personal friends are in show business and only know me only as Jon McPhalen.

Since the display can only enable one column at a time why not add a (cheaper) 74x138 multiplexer for column control ?  You could get really crafty and two (or use the 74x154 - like on the Robolympics badge) to get 15 columns.  With 16 columns you may want to speed up the ISR to prevent strobing (which humans start to notice at about 15 or so Hertz).  You might even get really tricky and do an interleave of the columns: 0, 8, 1, 9, 2, 10, ...

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