Hello everyone, this is my first post on this site. This seems like an interesting subject.
I am intrigued by how many people seem to think that having AS makes you more likely to be an athiest. Personally, I often think the opposite; tendencies like believing in solid, inflexible things (such as the concept of absolute truth, maybe) and having very black-and-white attitudes about certain things, seems to be something that religious people and autistic people have in common.
A very common autistic character trait is being unable to see other people's points of view: "I am right, anyone who disagrees with me is wrong, and that's just the way it is." I'm not trying to criticise any particular groups of people here, but a very common attitude for religious people is basically: "My religion is the right one, therefore I will go to Heaven. If your religion is different from mine, or if you have no religion, you will go to Hell. There is no way you can convince me otherwise." I know I'm making a sweeping generalisation based on a simple statement here, but doesn't there seem to be a definite similarity between autistic people in general and anyone who happens to believe in a deity (or more than one?)
I think my religious beliefs (Christian) and my AS are the two most important things about me; they are the core of the type of person I am, so I find this subject interesting as both a Christian and an autistic person. I have always had a keen sense of honesty and strong ideals of right and wrong, but I always thought that was simply because I had a Christian upbringing, so those ideals were part of the way my parents raised me. A few years ago, when I learned I had Asperger's, I realised that some of my personality traits may be at least partly due to this condition.
By the way, regarding some comments that various people have made; religious people are no less likely to want to analyse something logically than atheistic people are. As I'm sure most people realise, both sides of the debate can make certain assumptions and conclusions that are not entirely logical. I respect athiests' opinions, I think they can have some very logical and intelligent reasons for their points of view, so I will say no bad things about them.
As has been said, religious people tend to be conformists, whereas people like us are somehow "different". And yet, a desire for order, routine, and doing everything by the book is a common AS symptom.