It’s true: the book is about to be made available — and can no longer be called “vaporware”!
A few of us burned the midnight oil this past Monday, and the final version of the book, Practical Plone 3: A Beginner’s Guide to Building Powerful Websites, was sent to press early Tuesday morning. In addition, according to Veda Williams (who had a great deal to do with the book’s being completed), the price of the book is about to jump $10 USD due to its unexpected length: the proposed page count was 360, and the final count is over 560 information-packed pages of Plone goodness. Therefore, if you’re thinking of buying the book, now is the time, before the page count (and price) are officially updated.
Update: the book is now available for purchase on Amazon.com and has been received by some of those who were crazy enough to pre-order it. 
Unfortunately, due to Amazon’s listing limitations, not all the authors are included in the books by-line. We’re told that Packt and Amazon are looking to rectify this.
Just ordered the book & can’t wait to get it! The authors are very impressive.
Can’t wait and thanks to all the contributors.
The plone community really needs a book like this. Have pre-ordered it too!