>:: The classic flavor on the other hand spawns new processes
>:: and uses multiple CPU's very well.

>Should I consider switching it? And would this have any impacts on our
>production applications?

I must stress that I am very new here and you should stick around for more knowledgeable answers. But the likely correct answer to the first question is yes you should definitely consider switching. The FB team doesn't keep two version around without a reason.

Read up on the differences and at least make an active choice. Goolge is your friend but this should be a good starting point:
http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_ss_vs_classic

The answer to the second question is probably that you have to do is change the server type connection string an not much else.

Think try and choose.

Good luck, I am using the embedded version myself.

Tim