I love this application. From what I've read, Kindle for iPhone isn't the best ebook reader. But it certainly suits my needs. What I like best is the ease of putting books on my iPhone and the opportunity to download samples. I'm currently reading The Well Dressed Ape. It's the perfect book for reading on the iPhone because it has lots of fascinating bite-sized bits of information. Recent updates to Kindle for iPhone have added features people were clamoring for: landscape mode, the ability to browse and purchase books from Amazon's Kindle Store directly from your iPhone, alternate backgrounds and text colors, and the ability to zoom in on images.