Ubuntu 11.04 Natty Narwhal daily builds are available to download starting today.
If you want to try it out (WARNING: do not install it on a production machine), download an ISO and try it out in VirtualBox. Or better yet, install TestDrive and give it a go with 2 clicks.
The first Natty alpha is scheduled to be released on December 2nd (see the complete release schedule, here).
