Bruce!
The Your Computer artice starting with: big problem before the launch because the rubber keyboard mat not ready.
Previously you told, on the launch wired prototype worked at hidden under desktop.
At this situation why important the rubber keyboard mat? The dummy Enterprise connected as keyboard to prototype unit?

Under the development which keyboards used for the prototypes?

Another possibility: after the demonstration the press members can touch the dummy Enterprise? The rubber mat important because needed who is pressing keys feel the real feeling?

Bruce! Do you know anything about Assembler program from Intelligent Software?
It is mentoined here, and later in many articles. Also in a price list.

Some years ago I found ZEN 1.1 in this tape:
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Recently I have got a manual for this program, which I have scanned yesterday.

Now I think the ZEN is same the advertisted Assembler/Disassembler program.
Probably when the machine released, there was urgently need for one assembler program.
IS does not have enogh capacity to write one from zero so they looked for an available one.
Agreed with Avalon Software which released the ZEN for many machines.
But it's currently unclear who did the Enterprise adaptation - the Avalon or IS? I guess the IS because the developer team have experience with Enterprise.

The manual told the Enterprise version was developed from the Lynx version. Unfortunately the Lynx is very unsuccesful, and there's very limited informations available. No Lynx version of ZEN available for comparision

But it could be another Entersoft project that we, the developers at IS, knew little about.

And I think this project not need to much time, modify the screen/keyboard/save/load routines in the original code are only few days, and some more for testing.

I am (or was!) very familiar with ZEN though because I "cut my teeth" on a Sharp MZ80K, using Avalon Zen, and used it for lots of projects!

It is a popular Assembler at these years on non CP/M Z80 systems?

zozo has just prompted something from my memory...one early machine I worked on while at school is the Research Machines 380Z, which was a common school computer in the UK in those days, based on a Z80. That had a small operating system which was called with a RST instruction followed by a function byte, and this is where the EXOS call method came from. I think there were other systems around that also used this method - the Nascom springs to mind but I might be wrong on that!

Bruce! I think until the many years you are talked with many people (friends, coworkers, clients, etc) about "starting with computer" topic, who used which computers when begining.
Before you find our forum ever found anyone who are used Enterprise?

In a word, no! 

Unbelievable! How is it possible that the British people are not familiar with the Enterprise, even though it is advertised on television

I would guess because it was only around for a short length of time, a long time ago! Commodore 64s, Spectrums, ZX80 and ZX81s, PETs, Apple IIs are another matter!