Last month, John Wilkins was at a conference on Religion and Tolerance and links to the complete video of the conference are posted on his blog [Religion and Tolerance]. Fascinating stuff.
Here's Richard Dawkins explaining the possible Darwinian survival value of religion in a way that makes a lot of sense although I don't think he pays enough attention to explaining how genes cause behavior. He also touches on the question of whether religious belief can lead to doing evil things and chastises believers for bringing up Hitler and Stalin. It's not true, he says, that having a mustache makes you evil.
If you look quickly in the first few minutes you can see a famous Australian philosopher in the audience. He seems to be agreeing with Dawkins.