The accelerationstory has finally cooled down a bit judging by my google news feed. That being said, I suggest you check out the comments threads on p-ter's twoposts, here & here. John Hawks and some of the other authors of the paper have been participating in the back and forth. The paper is finally on PNAS's site (Open Access), with the supplementary information. It is also important that you read this paper in concert with Global landscape of recent inferred Darwinian selection for Homo sapiens, which has a detailed explication of the methods and more specific data.