John Lott has posted his response to the motions to dismiss filed by Levitt and HarperCollins. The response was filed yesterday. It can be found in pdf form on Lott's website.
Tim Lambert appears to have the first (though brief) take on Lott's arguments. Or maybe it was Ted Frank at Overlawyered. Frank's reaction: "Lott seems to have the better of this exchange as a matter of positive (if not normative) law because of the liberal pleading rules that make it nearly impossible to dismiss a case on the pleadings."