In Fedora 10 you get to choose from four different desktops. Apart from GNOME and KDE, one gets LXDE and Sugar. The tXDE desktop is a new project; it is light weight and fast specially meant for lower end computers, as it keeps the resource utilization low as compared to other desktops. The concept of 'Sugar Desktop' originally came from OLPC (One Laptop Per Child) project. The ered by stripped down version of Fedora Linux and Sugar interface. The goal of sugar interface is to provide easy, fast and social experience to users. In KDE 4.1, the Kwin desktop manager now provides support for desktop effects and compositing which you have to enable manually. But KDE Live does not have Compiz/Beryl. Well in GNOME you also find desktop effects which need to be manually enabled.