You can check some mini-reviews on Amazon.
http://www.amazon.com/Elemental-Destinys-Embers-Bradley-Wardell/dp/0345517865/ref=sr_1_1?ie=UTF8&s=books&qid=1283276428&sr=8-1
Other than that the only (and quite funny) review I found was the already mentioned:
http://www.unamommer.com/?p=109
I haven't read the book so I can't really voice an opinion on it.
But basically B.Wardell is not a writer and most projects where someone decides to write and selfpublish or publish a book connected to a product end badly. (=the movie/game will help sales regardless of the quality of the writing, so the publisher goes with it).
That being said it's possible that the reviews so far don't do the book justice. But personally I'm not going to buy the book just to check it for myself. There are many many great writers and fantasy/sci-fi books out there. And from what I've seen so far in Elemental said world seems very generic.
But if someone read the book and could write a short review Im sure we would all appreciate it.