Well the surprises just keeps mounting. After shocking everyone with the announcement that Ubuntu 11.04 will have Unity on the desktop instead of GNOME Shell, Mark Shuttleworth announced another possibly bigger change – Unity is going to use Wayland display server instead of X. This will not be implemented in Ubuntu 11.04 though
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Compared to X, Wayland is a very young project. It was started by Kristian Høgsberg, who said that the aim of Wayland is “every frame is perfect, by which I mean that applications will be able to control the rendering enough that we’ll never see tearing, lag, redrawing or flicker.â€
