That all depends on what we mean by "materialism", of course...
It would be worth stating it, otherwise potentially it's all very futile...
As far as Phillip Johnson is concerned it means a metaphysical doctrine of naturalism ie. there is no god.
Phillip Johnson is of course talking out of his arse.
However I think there is a real difference between intelligent design creationists and evolutionary biologists. They have both asked themselves questions along the lines of "how come a bird has wings which allows it to fly?" Perhaps traditionally this would be a non-question. You would just say, "well that's the way it is." Nowadays we ask the question and we use Darwin's theory to get the answer. Scientists want to explain. But creationists want their innocence back. So they try to obscure. They don't want to say - "God did it and this is how God did it". They want to say, "well who the hell knows?" Their goal is to confuse. Incidently this partly why dilute micro is so confused. He reads literature that's designed to confuse you.
By the way I'm a little bit sorry about my behaviour. Not totally sorry. But a little bit sorry.