I wrote at more length about it in yesterday's ChromeOS post[0]. I don't think it's the year of the linux desktop anymore than Android is the year of the linux phone. Sure, there's a kernel somewhere deep, but the userspace is locked-down, weak and anti-consumer.
I find the book itself more interesting. Netbooks were crap for a long time, but things have gotten cheaper and I enjoy the form factor. Writing this from an Acer C720 running GalliumOS as we speak, but I'm in the super minority of Chromebook users. Read the Amazon reviews once of a Chromebook and you'll see what they find irritating or glorious. Hint: It's not the lack of a good IDE or inability to install gvim. Also, anyone that says Chromebook sales are great because their such an 'open hardware ecosystem' is fooling themselves [1].
[0] https://news.ycombinator.com/item?id=11735326 [1] https://news.ycombinator.com/item?id=11735762