So, results of the study showed that atheists/agnostics were more knowledgeable about a wider range of religious beliefs, they knew more about individual parts of the Bible, and correctly answered an average of 20.9 out of 32 questions.
The results did not surprise me. The way I see it, the more you know about religion, the less you want to be religious, haha. The more and more you look at what it is people believe, you can begin to understand how truly ridiculous it is.
I think that a lot of people become atheists for this reason, and when I say atheist I'm talking about someone who describes themselves as a New Atheist, and not the strict atheist definition. They look at all of the claims made by many religions and begin to see patterns. They see that these religions all make claims about the universe that cannot possibly be substantiated and that they are really irrational.
It seems a lot of atheist organizations are also not surprised by the results, much like I am. If you want more information on links between religiosity and intelligence (a little unrelated, but still interesting), check out the studies cited in the Wikipedia entry here.