my take: I loved this. It sounds lame to say it's 'novel' but it's true. Something different. A great new imaginative author. And very well-written.
The book is kind of sci-fi but more futuristic maybe even leaning toward magical realism ... told from 11 year-old perspective, so it felt a little like a young adult book. The main character is navigating middle school - which she calls the age of miracles - during a time when the earth is navigating its own growing pains.
Happily, hubby read it just before I did and we were able to chat about it on the drive home from spring break (I finished while he was driving - thanks, hunny!). It's a book that begs discussing. He agreed that it's a fascinating concept.
my source: Read daughter anne's copy ... had seen on several lists and knew I wanted to get my hands on it
my verdict: Great. Fast read.
UPDATE: my 17 year old son read this in two days - which means not only is it a fast read, it's great.