Ubuntu 6.10 ("Edgy Eft") is has been released. Upgrade instructions here. The cautious might want to stick with the previous version ("Dapper"), as it is the 'Long Term Support" release, and the adventurous might be disappointed that it's not as "edgy" as some had hoped it would be. Thankfully it's a Friday (GMT+10), so I'm diving in confident that I've got two days to fix anything that gets broken.