The promised Ubuntu Touch Developer Preview, the first version of Ubuntu ready for phones and tablets, is now available for download. Canonical has provided operating system images for various types of Nexus devices, along with instructions for installing them.
"The Ubuntu Touch Developer Preview is intended to be used for development and evaluation purposes only," Canonical said. "It does not provide all of the features and services of a retail phone and cannot replace your current handset. This preview is the first release of a very new and unfinished version of Ubuntu and it will evolve quickly."
The installation process wipes Android from your device, unless you follow instructions to dual-boot the two operating systems. Google provides factory images for Nexus devices, so if you want to revert back to Android afterward that is an option. Before replacing Android with Ubuntu, make sure to check that your device is supported. The Touch Developer Preview is for the Galaxy Nexus and Nexus 4 phones, and the Nexus 7 and Nexus 10 tablets. However, not every version of these devices is supported.