In 2013, Canonical - the company behind Ubuntu - attempted to raise $32m via crowdfunding for its Ubuntu Edge smartphone. It didn't make it, but the Ubuntu phone isn't dead. In fact, development is well under way and the Ubuntu phone operating system is very much alive. If you're brave enough, you can download and install the developer version on certain Android smartphones and tablets by following the instructions here.
Kubuntu14.10 Alpha 1 (Utopic Unicorn) is based on KDE 4.13.2, but the developers are tracking the upcoming KDE Frameworks 5, which is now in the works. It's been a long time since a Kubuntu development version didn't integrate an unstable version of KDE, but it looks like users will still be able to test what the makers of this distro are preparing.
“Plasma 1 is our recommended stable offering and what you get from the default download, but is now in maintenance mode. It runs the software you are familiar with and will be getting updates and bugfixes but not new features from now on.
The first alpha of the Utopic Unicorn (to become 14.10) has now been released!
This alpha features images for Kubuntu, Lubuntu Ubuntu GNOME,
UbuntuKylin and the Ubuntu Cloud images.
Pre-releases of the Utopic Unicorn are *not* encouraged for anyone
needing a stable system or anyone who is not comfortable running
into occasional, even frequent breakage. They are, however,
recommended for Ubuntu flavor developers and those who want to
help in testing, reporting and fixing bugs as we work towards getting
this release ready.
Unlike the previous development branch for Ubuntu 14.04, fewer developers chose to participate in the first Alpha release of 14.10. This is not something to worry about and it's likely that the second Alpha will have more exposure.
Canonical stopped releasing Alpha versions for its operating system for some time now, and only a few of the flavors have decided to keep doing this kind of releases. Ubuntu 14.10 will only get a Beta version right before launch so, until then, users can only expect the flavors to have intermediary builds.
Ubuntu has quite a few flavors under its belt, but there are still a few ones missing, like MATE for example. A few developers, including one from Canonical, are working to make Ubuntu MATE Remix a reality and so far they have done a great job.
MATE is a desktop environment aimed at users who really enjoyed the old GNOME 2, but who also want something different from what everyone else is doing. Most of the major desktop environments are going through big changes, like GNOME and KDE, but the MATE developers are working to keep things the way they were.
If you use Ubuntu 12.04, use the second ( PPA below. For Ubuntu 14.04, you can use any of the two PPAs below.
Tsvetko's stable Cinnamon PPA provides the latest Cinnamon for Ubuntu 14.04 (2.2.13) and Cinnamon 2.0.14 for Ubuntu 12.04 (that's because newer Cinnamon versions don't work in Ubuntu 12.04) as well as all the required packages like Nemo, cinnamon-screensaver, etc.