This is a screen expanding app. SDesk, or Scrollable Desktop, isn't particularly new, but it's very useful, especially if you learn how to control it. It allows you to expand your "desktop" beyond the visible regions of your screen, which means you can scroll around this expanded desktop. You can pretty much scroll just by moving your mouse to the side of the screen, in the direction you wish to go. Even more powerful is the regions feature. Set up areas of the virtual screen as named regions, and you can zip to those any time. These can overlap, and be almost infinite. The developer is working on an infinite desktop as well.