Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great book, just wish Amazon's Kindle Store Hadn't Messed up...

Yet another book that was initially offered with a Kindle edition but whose Kindle edition has since gone poof! and disappeared.... I should have bought it in Barnes and Noble when I saw it, but had decided to wait until I got home to buy it on my Kindle2. This is more a review of Amazon. As for the book, it has fantastic, glowing reviews all over the place, and the sample I had downloaded sucked me right in...