Development of DeskSpace 1.5.5 and TopDesk 1.6 is coming along very nicely.
DeskSpace 1.5.5 will be released in around 2 weeks, and will focus on improving the way windows are managed and manipulated on the virtual desktops. Desktop switching performance will be drastically improved, as will application compatibility.
TopDesk 1.6 will be released in 2-3 months, and will include new layout modes, including a CoverFlow-like mode, and a revamped user input manager that will allow you to use multiple layouts (e.g. Flip and Spatial) at the same time.