Cory Doctorow & Charles Stross 
Rapture of the Nerds [EPUB ebook] 

At the dusk of the twenty-first century, Welsh technophobe Huw is one of the billion or so hominids left on Earth, living in a preserve at the bottom of a gravity well. The rest have emigrated, uploading their consciousness to a vast cloud that fogs the inner solar system with a dust of molecular machinery, and occasionally spams Earth with plans for cataclysmically disruptive technologies. Wary of anything more sophisticated than his bicycle, Huw jumps at the chance to attend tech jury service and defend the Earth from the scum of the post-singularity patent office. But his long-awaited stint is cut short when he becomes infected with an itchy technovirus, and unwittingly becomes the last hope of the entire universe.