Libre Office 4 v Ubuntu 12

This ppa contains alpha and beta release (before the 3.X.0/4.X.0 release). Only for the most brave and courageous!

to test these do:
sudo apt-get purge libreoffice-core
sudo add-apt-repository ppa:libreoffice
/libreoffice-prereleases
sudo apt-get update && sudo apt-get install libreoffice

Libre Office 4 v Ubuntu 12