I am curious about the progress being made with Wayland and would like to perhaps give it a spin. According to the Launchpad page, it is packaged in Oneiric (and has actually been packaged since Natty). Therefore I can simply install it by running:
sudo apt-get install wayland-demos
However, I don't know what will happen if I install it. Will I need to manually launch it? Will it play nice with X configuration files and settings? Will anything break?