* Read in portrait or landscape mode.
* Select alternate background and text colors to improve reading comfort in low light conditions.
* Tap on either side of the screen or flick to turn pages.
* Pinch to zoom images in books.
My favorite thing about the landscape/portrait mode is that while you rotate your iPhone to switch between the two, theres a lock icon in the lower right hand corner to easily disable this rotation. I wish every app on the iPhone had that, as I cannot stand when things rotate even though I didnt want them to. The background options of black or sepia along with the standard white is also a nice touch, as it can be hard to read on the white when the screen is fully illuminated.