Amazon Updates Kindle App For Android has updated its Kindle for Android app to make reading on Android devices easier.

The update includes the ability to search the full text of Kindle books by voice or text, as well as the ability to look up words and phrases in Wikipedia.

The new app can also lock screen orientation in portrait or landscape mode, as well as look up information about a book on social networking site Shelfari. Users can also add notes and highlights books. The app will be updated automatically for existing users.