Hello Linux Geeksters. As you may already know, Canonical has been working at lot at Mir, their own display server, which is intended to be an alternative to the good old X.org server.
Initially the Ubuntu developers planed to use it as default on Ubuntu 13.10 Saucy Salamander, but the idea was postponed due to some performance reasons.
After the latest update, Mir is now compatible with the most important Android GPU vendors: AMR Tali T-604 GPU used on Nexus 10, Qualcomm Adreno 320 used on Nexus 4, Nvidia Tegra 3 used on Nexus 7 and PowerVR graphics used on Samsung Galaxy Nexus, via the libhybris open-source library.
The latest Mir update did not reach the Ubuntu Touch images yet, since it is still a work-in-progress, but it will be available soon enough.
Despite the fact that first stable image of Ubuntu Touch (based on Ubuntu 13.10) had support for all the Google Nexus smartphones and tablets, it was optimized only for the Google Nexus 4, despite the fact that it has been experimentally ported to OPPO Find 5, Pantech Vega Iron, Xperia Tablet Z and many other phones/tablets.
A presentation video of Mir running on the Nexus 10, Nexus 7, Nexus 7 and Galaxy Nexus has been created by Kevin DuBois, a Mir/Canonical developer: