SwiftKey X is arguably one of the best keyboard alternatives for Android, and it's only getting better. The newest alphas (VIP login required) for both phones and tablets include a much-needed feature for any keyboard: multitouch. This will allow for even faster typing, fixing one of SwiftKey's biggest issues - missed and repeated letters.
Over the next few days, we would greatly appreciate your participation in Alpha testing our latest update to multi-touch functionality. This version is an Alpha, so we would advise against using it as your primary SwiftKey keyboard. However, your feedback will assist us in refining the SwiftKey experience for the betterment of all of our users.