This book was written in a hurry to catch the SMS wave and it stinks from it. Many chapters were written by different people with different styles of writing, some more eloquent than others. Consequenty it makes for bad reading.
It contains numerous inaccuracies and extensive reptition. Clearly nobody did a proper job editing this book in its entirety to create a common style of writing or at a minium, technical and commercial accuracy. Donald J. Longueuil did himself a disservice by putting his name to this.
Each of the authors has their own bias (based upon who they work for) and this comes out clearly in the book. Thiis book esentially becomes a series of sales pitches, rather than a truely independant overview of the SMS/EMS/MMS market.
All in all very disappointing and a complete waste of money.