"Misguided Utopia with few valid insights"
What I liked in the book: the observation about everyone being a diplomat of his/her country, culture and/or institution, of the fact that NGOs can be more flexible than nation-states, and the acknowledgement that NGOs, corporations and even single people are important political players in todays world. This is the reality and it certainly should be embraced in one way or another.
However, apart from this, the rest 4/5ths of the book is over-optimistic praise of the actions of said players, at the expense of nation-states with some ideas that contradict each other and present the author's shallow understanding of history or economics mixed in with hopes and dreams of some globalist institutions and think-tanks.
After reading the first part it almost looks as if the good ideas (decentralization of power, initiatives that come from bottom-up instead of top-down) were really a bait and switch for presenting another Utopian vision of the world, which is not a result of proposed changes, just a place where the power was transferred to other big players.
All this also suffers from the one-sided look at human nature, without any serious consideration of the dark side - the thirst for power, the love of money, fraud (praising Khaddaffi's Sovereign Fund in the light of recent events in Libya is really a good illustration of author's bias), racial and ethnic hatred, and all other things that also make us human.
Overall the book is shallow, optimistic, and misleading. It might be important to read it to know that there are people who think this way, and who also have important voice in current world of politics, but apart from that - buyer beware.