Although the technical details may lag behind the innovations of Amazaon, I believe the book gives a good insight in the way of thinking when designing your infrastructure/app for AWS.
"we are not going to list all the available commands...you should be comfortable with the command line...and it certainly wouldn't hurt if you know what Ubuntu is...and how to install software... If you are a seasoned software/systems engineer or administrator, there are many things in this book that will challenge you."