I still want to know the software though... isn't simply curiosity reason enough?
Certainly! I would be interested as well, though I would likely never use such software (I would, however, use something like in Fritzing, where I could prototype a design on breadboard, then put the parts over onto fritzing's breadboard, and it would keep the netlist for the schematic, then to PCB - but then again, one should build the prototype on the breadboard from a prototype schematic - I just tend to hack something together on a breadboard first from basic schematics, then draw a real schematic, and update from there - probably a bad workflow, actually).
Just realize that while it helps you, eventually the training wheels need to come off...
Mowcius quietly dies.
Done properly, wirewrap can actually be a nice thing; the problem is learning to do it properly. I read a tutorial on this once, which involved wrapping the layers such that, for any pin with more than two levels, you would only need to take off a set of levels of some low number to reach the level you wanted.
Wire-wrap has its uses - it is a much stronger mechanical joint than soldering, for instance...
The "worst" rats-nest I have seen of wire-wrap (which probably isn't the absolute worst - I am sure some of the old transistor and older computers that used wire-wrap were real nightmares) was of something called the "CoCo 3 Prototype" - this was a wire-wrapped monster of a Tandy Color Computer 3 used by Microware to (supposedly) develop OS-9 Level II for the CoCo 3 back in the mid-1980s:
This is one side of it:
I can't find images of the backside, but let's just say its a mess; by the way, that board above is pretty large - it also doesn't have on it a chip that is on the CoCo called the GIME; this chip was a "proprietary" chip, and no more exist - it is thought that the GIME was implemented on this board using discrete logic ICs and/or custom programmed PALs or other such devices (before it was ultimately commited to fabbing as an IC). This was the way things were done back then...