Hi all, Sorry for being so late in responding but here are the facts why Openoffice.org 3.0 didn't get included for Hardy :-
1. Openoffice.org 3.0 was released too close to Hardy release hence enough testing and testers were not there.
2. During any of the Ubuntu release cycle, most of the components are stabilized around alpha 4.
3. When Openoffice.org 3.0 was released it was thought (and rightully so) that its too big, unweildy and intrusive to do such a big change at so late in the game.
In fact there is a bug where discussion is going on for backporting OO.o 3.0 for Hardy.
https://bugs.launchpad.net/hardy-backports/+bug/283137
What's happened with OO.o may & will happen again. It needs more packagers and testers alike.
Just my 2 paise.