The book although published in 2001, there articles presented in various different times. In last five years open source initiative have taken software to new areas and heights. I guess some of the ideas presented may have not be very relevant in today's times. There is a lot of new advances like Microsoft being more standards concious are not part of the book. Two articles I felt were important to understand the open source community at large:
1. Homesteading the Noosphere
2. The Magic Cauldron
The reason I liked the two articles as the first one talks about the community and how the gift economy works and the second one is about how to create a business model around open source and the sustainability of the same. I think the revolution is a long way to go. However, the way open source is fuelling the evolution of software there is a possibility of software as services may work out as the eventual model.
However, there is still some time may be in next 2-5 years.
A must read book for anyone who wants to understand the vision and motivation of open source. But, I still would say this book is not enough still to provide the needed insight to model a business around open source as there are not enough data to create a perceived value for your business.