We have been seeing bits and pieces of a new technology dubbed “BlackBerry Blend” that is supposed to bring some of the BlackBerry 10 experience to your desktop or any other screen. It was previously called BlackBerry Fuse but now it seems like the name is sticking with it showing up in the latest BlackBerry 10.3 leak. That means it probably will only show up in later 10.3 or even 10.3.1 builds.
What it does is bring lots of parts of the experience from BlackBerry 10 available on another screen or device showing your calendar and other communications. Check out the pictures extracted by my buddy Bla1ze at CrackBerry: