Kindle’s initial release only let you read books in portrait mode. The new version introduces a landscape mode with auto-rotation, so you can read books as they were intended to be enjoyed—widescreen, baby. There is also a small lock icon at the bottom right of the screen that, when activated, locks the Kindle app’s screen orientation either in portrait or landscape for those times when you don’t want the app to automatically reorient itself.
Also new to 1.1: a couple of new choices of text color. Version 1.0 would display text any way you wanted, as long as you wanted black text on a white background. Kindle for the iPhone 1.1 adds two additional color combos: white text on a black background (for those people out there who hate their eyes) and sepia text on an off-white background. (It gives books that old time flavor best seen in those novelty photographs you get at amusement parks.)
The final new feature—and my favorite—lets you tap on either side of the screen to turn pages. Prior to version 1.1, when you wanted to flip a page on the Kindle app, you had to drag your finger across the screen. That method did approximate the feeling of reading a book made of paper, but I kind of thought the whole point of the Kindle was to offer a superior experience to a book. (Or at least, get rid of some of the annoyances lest anyone accuse me of hating printed books).