As Blackadder explains at more length, Unequally Yoked is running a Turing Test to see how well atheists and Christians understand one another. I didn't see the first round in time, but this week fifteen people (some atheists, some Christians) have answered questions about Christianity as if they are all Christians.
I've only just started to work through it, but it's fascinating. I'm thinking they need some good solid Christian readers to help give a good scoring, so head on over and see if you can identify who the real Christians are and who's faking it. (My personal bet is that in most cases Christians can fake atheism better than atheists can fake Christianity.)