have you read it or are just thinking about buying it?
it has an interesting title but i was a little disappointed by the contents page.
it appears to be instructions on how to build a particular robot rather than information on different ways of using Linux in robotics.
in the online chapter for example there is nothing on embedded Linux or using a remote Linux server to control drones which are (arguably) both more common uses of Linux in robotics in the RealWorld (tm).
i'd say it would be a good buy for any one who wants to put an x86 motherboard on a robot and is happy with the design choices of the author.
i'd be interested to see some of the later chapters to see how much detail there is there, particularly the Vision and Mapping chapters.