SwiftKey X keyboard is now available for Android at the Android Market for $3.99, however in an amazing offer Amazon Appstore is giving it away for free for today only. SwiftKey X has an advanced prediction engine that learns your typing habits and suggest words, which in turn making typing on Android much faster.
Download SwiftKey X for Android Free [Today Only]
Android Appstore Amazon – Download link
Note: This is only for US Android users, or if you have an Amazon.com account you can try it too.