I think everyone has the answer about why OpenOffice 3.0 is not include in Ubuntu 8.10 (Intrepid Ibex). This is because the delay of OpenOffice 3.0 release and the developer didn't have time to test it, but don't worry they will include the OpenOffice 3.0 for the next Ubuntu.

OpenOffice comes with OpenWriter - a word processor, OpenCalc - a spreadsheet and OpenImpress - a presentational package.

For Ubuntu

Download a copy of OpenOffice.org 3.0.1

1. Once you have done that, extract the .deb file, OOo_3.0.1_LinuxIntel_install_en-US_deb.tar.gz then you'll see a file called OOO300_m15_native_packed-1_en-US.9379

2. You can remove the existing version of OpenOffice if you wish with this command:
sudo apt-get remove openoffice*.*
3. Copy and paste OOO300_m15_native_packed-1_en-US.9379 onto the desktop then open Terminal and paste this command: sudo dpkg -i ~/Desktop/OOO300_m15_native_packed-1_en-US.9379/DEBS/*.deb

4. Then paste this command: sudo dpkg -i ~/Desktop/OOO300_m15_native_packed-1_en-US.9379/DEBS/desktop-integration/openoffice.org3.0-debian-menus_3.0-9376_all.deb

5. Once you've done that you'll find OpenOffice 3.0.1 in Office

Below is the how to install OpenOffice 3.0 on Ubuntu 8.10

1. Go to System -> Administration -> Software Sources

2.Go to the second tab, "Third-Party Software," click on the "Add" button, and paste the line below.

deb http://ppa.launchpad.net/openoffice-pkgs/ubuntu intrepid main
3. Then, click the “Close” button, then the “Reload” one and wait for the application to close!

4. When the Software Sources window will close itself, the update icon will appear in the system tray

5. Click on it and update your system!. Your open source office suite will be up-to-date from now on. Take a look below for some shots of OpenOffice.org 3.0 in Ubuntu 8.10 (Intrepid Ibex).