Amazon's free iPhone Kindle application has received an update with several improvements to make the app more user-friendly. Many of the features were expected by users in the first release, as they are typical to many iPhone apps.
Here are the changes:
Users can read in portrait or landscape mode.
Gesture (pinch) to zoom images in books.
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.