The update also adds a new stats panel so that you can see what SwiftKey X is doing for you. You can also share this with your pals to show them how their typing could improve by downloading the app. The update also is equipped with language layout switching for those who use different keyboard layouts because of different languages. Those who want to always write in lower case will be happy about the reappearance of the autocaps toggle.
Other improvements made include instant language switching, better error reporting and some bug fixes. Whether you are a current SwiftKey X user or not, you will probably notice some improvement in your typing by downloading the app, which costs $3.99 and requires those downloading it to have Android 2.1 or higher.
source: AndroidMarket via AndroidCentral
The SwiftKey X update brings a heatmap (L) and stats (R) to improve your typing (C)