Discovered dissing "Ayn Rand Contra Human Nature" over at at Richard Dawkins' site (registration required), James Valliant, author of "The Passion of Ayn Rand's Critics", offers to personally critique Nyquist's dread tome. But then sadly he changes his mind.
(some scrolling may be required)
Update: Post retitled due to the excellent suggestion of Anon in comments. The exchange is particularly valuable as a verbatim example of what Objectivists such as Valliant pass off as "empirical" support for their views. As I wrote, Valliant simply has "persistent difficulty differentiating an imaginative conjecture from an empirical reality. Something of a problem." This problem is of course perfectly consistent with the marvellous combination of sophistry, sycophancy, and fantasy that is "The Passion of Ayn Rand's Critics", the miscellaneous weirdnesses of which the ARCHNblog has outlined here, here, and here.
It's probably just as well as he didn't mention Rand's views on evolution there...