Quantal Quetzal daily builds are now available for download.
The Precise development cycle has been characterized by a serious amount of work oriented towards the daily builds with the clear objective of maintaining a quality and stability standard in every Ubuntu image from the very beginning to the final 12.04 LTS release.
It seems, according to Mark Shuttleworth and various developers, that the quality standard is to become per release and not only per LTS release.
A definitely interesting fact is if the the stability and high-quality approach (every major issue addressed in hours not days, followed by an immediate Ubuntu image rebuild) will generate an Ubuntu 12.10 as stable as Ubuntu 12.04 LTS, although Quantal, being the first release after an LTS, is naturally to be focused on adding new features, rather than stability improvements.
Ubuntu 12.10 daily build can be downloaded from http://cdimage.ubuntu.com/daily-live/current/