We know that Windows Phone 8.1 is coming, likely in April at BUILD, but there were a few software tweaks that did not surface when a preview version of the SDK leaked out last week.
Among the known improvements, like a notification centre, VPN support, improved multitasking, and improvements to the file system, include what seems to be a swipe-enabled keyboard.
A leaked video shows a keyboard system very similar to that of the default Android keyboard: swiping between letters reveals word suggestions atop the highest row of keys. It isn’t clear whether this will be a default behaviour, or even if it will make it into the final build of Windows Phone 8.1, but the potential is good.
Whether the cumulative improvements in Windows Phone 8.1 can add up to successfully take on the latest versions of Android and iOS remain to be seen, but it’s clear that, with the absorption of Nokia, the continued work on Windows 8.1, and the accompanying focus on mobile with Windows Phone, Microsoft is not letting the mobile market out of its sights.