Over at his Amazon blog, Michael Behe has a new post reviewing the work of Richard Lenski on E. coli mutations. While Lenski interprets his findings as showing the quirky nature of evolution, Behe has a different perspective:
I think the results fit a lot more easily into the viewpoint of The Edge of Evolution. One of the major points of the book was that if only one mutation is needed to confer some ability, then Darwinian evolution has little problem finding it. But if more than one is needed, the probability of getting all the right ones grows exponentially worse.