There's nothing for it. It'll just have to await a time when people can look at it without hyperventilating.
I'm not in the field so don't know how hard it is to study this stuff, but from the outside it seems like the study of genetics is really taking off, including the interaction of genetics and behaviour.
NYTimes just carried a very in depth article on that topic.
http://www.nytimes.com/2006/06/15/health/15gene.html?_r=1&oref=slogin
IQ is tricky, though. It's impossible to test the IQ of our ancestors, and not easy to test the IQ of very different cultures. You've been on Free Republic long enough to know that most of the people who are going to seize on the findings of this study are not going to be people with very high IQs themselves, they are just looking for justification for their prejudices.