Updated: 18.00 GMT: Ubuntu is now officially released, download it from here
http://www.ubuntu.com/getubuntu/download
Well Actually not yet, but in a few more hours a new release of an LTS Ubuntu version will be released.
According to Wikipedia this release
...includes the Linux kernel 2.6.32 and improved support for Nvidia proprietary graphics drivers, while switching to the open source Nvidia graphics driver, nouveau, by default.
The new style in Ubuntu is inspired by the idea of "Light". We're drawn to Light because it denotes both warmth and clarity, and intrigued by the idea that "light" is a good value in software. Good software is "light" in the sense that it uses your resources efficiently, runs quickly, and can easily be reshaped as needed. Ubuntu represents a break with the bloatware of proprietary operating systems and an opportunity to delight to those who use computers for work and play. More and more of our communications are powered by light, and in future, our processing power will depend on our ability to work with light, too. Visually, light is beautiful, light is ethereal, light brings clarity and comfort. Historical perspective: From 2004-2010, the theme in Ubuntu was "Human". Our tagline was "Linux for Human Beings" and we used a palette reflective of the full range of humanity. Our focus as a project was bringing Linux from the data center into the lives of our friends and global family.