Welcome to Jaunty Jackalope Alpha 4, which will in time become Ubuntu 9.04. It includes a number of software updates that are ready for large-scale testing." New features: "Updated packages; the latest X.Org server, version 1.6; font dot-per-inch settings are now optimized based on your monitor's capabilities; new style for notifications and notification preferences; Linux kernel 2.6.28; option of installing on the new ext4 file system, ext3 remains the default.

Ubuntu is a community developed, linux-based operating system that is perfect for laptops, desktops and servers. It contains all the applications you need - a web browser, presentation, document and spreadsheet software, instant messaging and much more.

This VMWare image lets you try it out without installing it or even rebooting your machine, and works in the Free VMWare player.
Login: vmplanet
Pass: vmplanet.net
md5sum: c24289d7031632b7d6ea3284fc0ba3d5 Ubuntu9.04a4.7z

Ubuntu VMware Image (load balanced mirrors)