Downloaded Ubuntu and setting up a VM a few minutes after you posted, it's finishing installing now... I'm giving it a shot too to see what's up. Also want to check up on Ubuntu
EDIT: Bitcoin Core 0.12 runs perfectly out of the box on the daily image I've downloaded from Ubuntu's website. I've downloaded the Core tar from bitcoin.org, which I assume is what most people do. Also tried adding the repository, which doesn't work, as expected. Armory however does not install from the deb, which I again assume is the way most people try to install it.
EDIT2: downloaded the offline installer and did dpkg -i *.deb, errored out. Did apt-get install python2.7 and terminal requested me to do apt-get -f install, which I did and in the end it said "Armory installed successfully". So I'm having success with both Core and Armory too... Doesn't seem to be breaking any compatibility so far whatsoever (at least it installs, not sure if it runs fine
). Tried with Armory 0.93.3, BTW, can try later with the most recent test versions.