Source: http://www.engadget.com/2013/08/21/swiftkey-cloud-final-version/
After nearly a month of beta testing, SwiftKey Cloud is now ready for the masses. Now in final form, the popular Android keyboard can backup and sync customizations across devices, and it can even learn phrases that are trending across the globe. Thanks to one-click authorization, it's now easier for SwiftKey to learn phrases from your Facebook and Gmail accounts, and it can also now tap into Yahoo Mail. You'll also find more responsive Flow predictions in the final version, along with some Emoji fixes. SwiftKey Cloud arrives as part of SwiftKey 4.2, which is available as a free update to current users. The app is also available for a free 30-day trial, but for a limited time, you can also snag the paid version for $2.99 / £1.49, which rings in at half off the regular price. Certainly worth checking out if the stock Android keyboard is no longer cutting it.