The book has received some humblingly great early notices:
Edward Snowden: Is Doctorow's fictional Utopia bravely idealistic or bitterly ironic? The answer is in our own hands. A dystopian future is in no way inevitable; Walkaway reminds us that the world we choose to build is the one we'll inhabit. Technology empowers both the powerful and the powerless, and if we want a world with more liberty and less control, we're going to have to fight for it.
William Gibson: The darker the hour, the better the moment for a rigorously-imagined utopian fiction. Walkaway is now the best contemporary example I know of, its utopia glimpsed after fascinatingly-extrapolated revolutionary struggle. A wonderful novel: everything we've come to expect from Cory Doctorow and more.
Kim Stanley Robinson: Cory Doctorow is one of our most important science fiction writers, because he's also a public intellectual in the old style: he brings the news and explains it, making clearer the confusions of our wild current moment. His fiction is always the heart of his work, and this is his best book yet, describing vividly the revolutionary beginnings of a new way of being. In a world full of easy dystopias, he writes the hard utopia, and what do you know, his utopia is both more thought-provoking and more fun.
Neal Stephenson: Cory Doctorow has authored the Bhagavad Gita of hacker/maker/burner/open source/git/gnu/wiki/99%/adjunct faculty/Anonymous/shareware/thingiverse/cypherpunk/LGTBQIA*/squatter/ upcycling culture and zipped it down into a pretty damned tight techno-thriller with a lot of sex in it.
Yochai Benkler: A beautifully-done utopia, just far enough off normal to be science fiction, and just near enough to the near-plausible, on both the utopian and dystopian elements, to be almost programmatic…a sheer delight.
Kirkus Review: A truly visionary techno-thriller that not only depicts how we might live tomorrow, but asks why we don't already.