After 3 years of effort, IEC 61850 Demystified is available for order. Artech (publisher) is offering a discount on the list price for a limited time. Information on the book and the discounted price can be found at: http://us.artechhouse.com/IEC-61850-Demystified-P1990.aspx.
Amazon has it available for pre-order, but at the list price.
According to the Artech website, release of the book will be 11/30.