There are many great features available in the next release of Ubuntu. Since I have been using 8.04 since its release I wanted to check out the next release. I chose to do this through the virtual interface of VMware. I know there other solutions available such as Virtualbox, Parallels, etc. I already had VMware Server installed and I didn't want to install another solution.
The features are listed on this page. I tested out the tabs feature and the eject button of nautilus. I also set up encrypted private directories which work very well. All of the features can be read on that page mentioned above. I can't wait for the release of Intrepid Ibex. I will certainly be downloading this release on the day that it is released.