Both Unity 8 and Ubuntu's new display server Mir will be available to try in Ubuntu 13.10. At least, that's the aim, anyway.
Unity 8 - the next major version of the Unity desktop - has been demoed running atop of Mir, Ubuntu's custom display server.
Unity Next, the next-generation Qt/QML version of Ubuntu's Unity interface designed to intelligently adapt to multiple form factors, can now be tried, tested, and hacked-on right from the desktop.
With the announcement of the new Mir display server, Canonical have begun the next major, multi-device shift for the Unity project: Unity Next.
