New SF audiobooks

Just in for those who like to listen:

Robopocalypse In the near future, humanity's flirtation with technology takes a tragic turn when Archos, the world's most advanced artificial intelligence, takes control of the planet's transportation, utilities, defense, and communication systems.
Difference Engine Part detective story, part historical thriller, The Difference Engine takes us not forward but back, to an imagined 1885: the Industrial Revolution is in full and inexorable swing, powered by steam-driven, cybernetic engines. Charles Babbage perfects his Analytical Engine, and the computer age arrives a century ahead of its time.
Childhood's End The Overlords appeared suddenly over every city, intellectually, technologically, and militarily superior to humankind. Benevolent, they made few demands: unify earth, eliminate poverty, and end war. With little rebellion, humankind agreed, and a golden age began. But what is the cost?
Pump Six Paolo Bacigalupi's debut collection demonstrates the power and reach of the science fiction short story. Social criticism, political parable, and environmental advocacy lie at the center of Paolo's work. Each of the stories herein is at once a warning, and a celebration of the tragic comedy of the human experience.
Dr. Who: The Jade Pyramid Two adventures featuring the 11th Doctor and Amy. The Jade Pyramid is read by Matt Smith.