The book covers extraneous information that is not "relevant" to the Bluetooth standard. For example, it has a one-pager on Jini and the last line was "At this writing, Jini's future is in doubt". As a Java developer, I may not necessariy agree, but the book also fail to mention Universal Plug and Play (UPnP) if the author really wants to be impartial and covers the whole gamut of lookup and discovery technologies.
There were also mispelled commercial products (page 7) of Cisco's Aeronet (should be Aironet), but the accompanying digital photos clearly showed Aironet. This is one of the examples where both the author and McGraw-Hill's book editor failed their proofreading and/or research tasks.
The Bluetooth protocol descriptions came pretty much straight out of the Bluetooth specifications, without any comments or analyses. This indicates that that author, in this reviewer's opinion, has limited understanding on how or why the Bluetooth teams arrived at certain technical decisions. The last chapter on Global Scheme of 3G Wireless has little to do with Bluetooth.
I'm rather disappointed with the book in general since it contains information that can be downloaded directly from the Bluetooth Web site (for free). Rather than trying to rush out the "first" Bluetooth book, both the author and publisher should focus on delivering quality content rather than another door stop. Save your $US49.95 for another book.
Normally, this reviewer does not write such a strong opinion unless the book is extremely bad or good. Unfortunately, I am mystified on why this book was published at all.