SwiftKey has already announced their new Flow keyboard and started sending off word that beta invite emails will be imminent, but aside from the original video released, we've not seen a whole lot of it in action. That changes today. Pay particular attention to the space bar here. That appears to be new. Swipe down through the space bar and just keep on going. You don't have to lift a finger. Full phrases in one fell swoop. Er, swipe.
We're still waiting on the actual beta to drop, but this video certainly makes it look like we'll see it soon.
Source: YouTube; Thanks, anon!