Best podcast yet, IMO! I'm really sorry I missed out on Allegro. I remember playing w/ a toy Ranjit Bhatnagar made up with it, with bubbling Xs and Os, but it wasn't quite enough for me to realize what I was missing out on...
One minor suggestion to Jeremy: in the mid-early part, I was left wondering about the specific timeline. I could get some idea based on the tech (hm, when was the Atari ST? When was VGA becoming SVGA? When was this Usenet stuff happening? etc?) but grounding things w/ year estimates as the history was gone over mighta helped.