Scientific American's blogger/book reviewer Jason Goldman has posted a nice review of the book version of Babel's Dawn. Check it out here. It concludes:
If you’re interested in the evolution of speech or language, or even if you’re just interested in the evolution and development of human culture more broadly, I’d eagerly recommend this book. Bolles manages to take a set of incredibly complex and extremely nuanced issues and make them highly accessible and, at times, entertaining.