K2 is one of the most popular extensions for Joomla. The CCK (Content Construction Kit) has been a favorite for a lot of devs for years, me included. Since Joomla 3 was released, K2 has started to seem a bit outdated, though. That's soon to change, with the release of K2 version 3.x.
In this post, you will find a short demo video from JoomlaWorks, showing the responsiveness of the new User Interface. In the example, K2 v3.x is running on a remote (busy) dev server.