Usplash which was used in Ubuntu 9.04 was replaced by Xsplash in Ubuntu 9.10 to provide a faster boot. Now, the Ubuntu team is replacing Xsplash with Plymouth.
Plymouth is already in use Fedora. The reason for switching to plymouth is because xsplash was not able to provide a flicker free experience as expected.
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Plymouth is the new Graphical Boot system of Fedora 10 which replaces the old RHGB boot system. If you have already installed Fedora 10 and are able to see a blue-white bar at the bottom of your monitor/screen while Fedora 10 loads, then Plymouth is actually enabled on your system. You are unable to see [...]