Nicholas Wade did an interview with PLOS Genetics a few months ago. You might be interested, as he has a new book coming out, Before the Dawn: Recovering the Lost History of our Ancestors. I am doing a review for a magazine so I have a copy, and the galley has a lot more in it than the history of our ancestors (think his sequence of articles over the past 5 years). I suspect it will be marketed like Spencer Wells' book, but this is a different beast altogether.