The Release Candidate for Ubuntu 7.10 (Gutsy Gibbon) has been released, you can download it here:
The following is a little information from their site:
Announcing the Release Candidate for Ubuntu 7.10
The Ubuntu team is proud to announce the Release Candidate for version 7.10 of Ubuntu, Kubuntu, Edubuntu, Gobuntu, and Xubuntu codenamed “Gutsy Gibbon”. The Release Candidate includes installable live Desktop CDs, server images, alternate text-mode installation CDs, and an upgrade wizard for users of the current stable release.
We consider this release candidate to be complete, stable, and suitable for testing by any user.
The final release of version 7.10 is scheduled for 18 October 2007 and will be supported for 18 months on both desktops and servers. Users requiring a longer support lifetime on servers may choose to continue using Ubuntu 6.06 LTS, with security support until 2011, rather than upgrade to 7.10.
Before installing or upgrading to Ubuntu 7.10 please read https://wiki.ubuntu.com/GutsyReleaseNotes
About The Release Candidate
The purpose of the Release Candidate is to solicit one last round of testing before the final release. Here are ways that you can help:
* Upgrade from Ubuntu, Kubuntu, or Edubuntu 7.04 to the Release Candidate by following the instructions given above.
* Participate in installation testing using the Release Candidate CD images, by following the testing and reporting instructions at http://wiki.ubuntu.com/Testing/ISO