I had trouble getting really into this book, although the story was interesting. I guess its mostly the Gibson-esque descriptions of a future world with plenty of assumed knowledge. However, I found the descriptions of the failed Mars missions deeply satisfying, and would love to see those covered in more detail.
However, the story gets better as you go along, and I found the second two thirds of the book to be really good. It probably helped that I have an engineering background, because some of the descriptions are quite technical.
Fiction
National Geographic Books
June 30, 2009
400

Sometime in the twenty-third century, humanity went extinct, leaving only androids behind to fulfill humanity’s dreams. And, having learned well from their long-dead masters, they’ve established a hierarchical society—one with humanoid aristo rulers at the top and slave-chipped workers at the bottom, performing the lowly tasks all androids were originally created to do. Designed as a concubine for a species that hasn’t existed for two hundred years, femmebot Freya Nakamichi-47—one of the last of her kind still functioning—accepts a job from a stranger to deliver a package from mercury to Mars. Unfortunately, she’s just made herself a moving target for some very powerful, very determined humanoids desperate to retrieve the package’s contents…