Now the dust has mostly settled for me, I thought people here might be interested in what we were using SWI-prolog for at Zerolight where I work. We wrote a configuration engine with it for really flash hypercars.
And I don't think I'd have been able to even remotely be finished on my part of the project now if it wasn't for Prolog and the support I got here.
Thanks :)
Steve (Stephen Coda)