As we wrote earlier, it has been discussed if Plymouth will replace Usplash in Ubuntu 9.04. It turns out there will be no Plymouth for Ubuntu 9.04 as we were hoping for. Currently Plymouth is planed for Ubuntu 9.10 due to the lack of KMS in the kernel.
This means the current Usplash will remain as boot screen for Ubuntu 9.04. But hopefully there will be added a small change to the Usplash called Usplash Smooth. This is the original Ubuntu Usplash for Intrepid Ibex with an exciting twist! The progress bar in Usplash Smooth is time-based. It remembers the time of your previous boot/shutdown, and will smoothly increase the bar according to this time. Since the boot/shutdown times change very little, you will get a very precise bar with a very smooth animation showing exactly how much time is left.
The original Ubuntu Usplash progress bar didn't tell you much information. It moves in small/huge increments, and sometimes stands still for a few seconds.
Let's hope this little twist will be added in Ubuntu 9.04. Anyway, check out the project below, and post your opinions!
Ubuntu Usplash Smooth (Hosted at gnome-look.org)
Ubuntu Usplash Smooth (Hosted at ubuntu-art.org)