I want use Ubuntu with the latest stable *software* instead of latest stable *packages*. As far as I'm aware the Debian equivalent is the Debian Unstable version.

* Is the daily live images released by Ubuntu equivalent?
* Does it continue updating with the latest stable software after a new stable Ubuntu version is released? As in, with the daily live installation of Trusty, does it continue updating with development software after Trusty goes golden?

I'm not sure, but I think I read on Mark Shuttleworth's blog that the development version of Ubuntu is stable enough to use on desktops. I'm neither trusting nor doubting the statement, but that post seemed to imply of continuous development releases like a rolling release.

Please enlighten me.