OpenOffice.org splash screen is relly simple and not so nice, even the original Sun splash is better. Also, in the main view of OO.o there's a screen side that need to be branded.
Adding a realistic icon and keeping consistency with Ubuntu main parts. This work and other I'll do, will be based on the Ubuntu GDM theme and Splash screen. This will guarantee consistency between item on the system.
All is under GPL or Creative Commons.
"Note: The full size image is a full source Adobe Fireworks file, so feel free to modify it."