After a:

sudo apt-get update
sudo apt-get dist-upgrade

to a Kubuntu 12.10 daily build from 2012-06-09, I now see Calligra Applications added to the Libre Office Applications. Currently the default seems to remain to open MS-Office and Open Office Formatted files in Libre Office. Where would I find which suite(s) will ship with Kubuntu 12.10, and if both do, which will be the default?