I was there today (Tuesday = Trade Day!) and can vouch that it is definitely 'on show'! It looks like a 'production' model too, with the yellow video output socket.
The actual board itself is 'protected' inside a clear perspex 'box' but the keyboard and screen are accessible.
As mentioned though, it was stuck at the 'login' prompt and there was no one around at the time to assist... and I had forgotten the default user name and password.
Mind you, even if I had remembered them, I couldn't have got much further anyway.