The Kubuntu website has a very good section describing the features. In essence though the rotating slides at the top of the page state that Kubuntu is:
The latest open-source project being forked by the Ubuntu developers at Canonical is the GNOME Control Center. In Ubuntu 14.04, there will now be the Unity Control Center.
The Acer C720 was recently released as the latest Google Chromebook selling for just $199 USD. I have been running the Acer C720 Chromebook recently but not with Chrome OS and instead Ubuntu 13.10 Linux. This Chromebook with a Haswell-based dual-core Celeron CPU runs Ubuntu Linux rather nicely. Here are the first thorough benchmarks from this low-cost laptop.
The newest release of Ubuntu, dubbed Saucy Salamander, doesn't offer much in the way of new features – except for the introduction of Ubuntu Touch for mobile platforms.
Of course there are other independent derivatives of Ubuntu — ones that use Enlightenment, KDE, etc. Those too are needed to ensure diversity and suitability to more potential audiences.
The number one distribution was, as usual Ubuntu. But, Ubuntu only got 16 percent, with Debian coming in second at 14.1 percent. So, one could say that Debian is strong since Ubuntu is based on Debian. One could also say that Ubuntu is surprisingly weak. One would think it would be higher. One possibility is that Linux Journal readers are pretty hard core, and might often eschew Ubuntu for other distributions that cause more pain. Face it. Real Linux users like to wear hair shirts.
Ubuntu users will soon be able to ‘search’ for torrents from sites like The Pirate Bay right from Unity Dash. A torrent lens created by developer David Calle will be available by default on Ubuntu.
Once again, Canonical does a good job at protecting its supported Ubuntu Linux distributions by releasing security updates from time to time. On December 3, Ubuntu 12.04 LTS received a major kernel upgrade that fixed twelve vulnerabilities discovered in the upstream Linux 3.2 kernel by various developers (eight of them were discovered by Kees Cook).