Interesting analysis by renowned atheist, Christopher Hitchens, about the Koran, it's beginnings, it's repetition and borrowing from ealier texts, as well as it's interpretation, and some of the outcomes of it all.
I found it a very interesting watch.
Part 1
http://www.youtube.com/watch?v=xTl-j2RFrh0&feature=related
Part 2
http://www.youtube.com/watch?v=1rTdFDsqf3g&feature=related
Part 3
http://www.youtube.com/watch?v=ozIZ6mmR2hc&feature=related

It is about 30 mins worth all up, and Hitchens does not do a massive amount of religious put down for Islam, of course one could not honestly look at the Koran with out pointing to it's flaws, but it is a subdued, matter of fact style, not a raving character assassination of Mohammed and all things Islamic, you would need to find someone who is hypocritical enough to not also disbelieve the bible, to do that.

The most interesting point for me was when he discussed Islam's lack of having had any reformation, of the kind that Christians witnessed, and suggesting that Islam would be so much the better if it could do so, but when something is by definition, divine, unalterable(even though alterations have been claimed from ealy times), and final, it will take some convincing for them to even address probable mistranslation of original ideas, with the "virgins", or "white raisins" as what is waiting for martyrs in heaven being one such example.

exactly