I found out through Steam. I finished playing a game and closed the game down. At this point Steam brings up some advertisements about the latest releases or deals in a separate window, instead this time it had a message fro Gabe explaining what had happened.
ashokcm writes: "The long awaited version of ubuntu (7.10, Gutsy Gibbon) will be out today. The release features among others 3-D desktop effects, automatic printer configuration and automatic firefox plugin installation. Canonical is also releasing Gobuntu 7.10, which is the debut release of the Ubuntu version that is composed entirely of open source non-restricted software." Link to Original Source