"Ubuntu is not changing to a rolling release. We are confident that our customers, partners, and the FLOSS ecosystem are well served by our current release cadence. What the article was probably referring to was the possibility of making it easier for developers to use cutting edge versions of certain software packages on Ubuntu.This is a wide-ranging project that we will continue to pursue through our normal planning processes."The reason that I was asked to comment on this was that an article appeared this morning that built off of some comments that Mark made regarding daily builds. The article went on to make some reasonable conjecture about possible implications. Links to this article were then labeled things like "Ubuntu Moves to Rolling Releases!"
I do like the idea of making it easier for developer and enthusiasts to use daily builds of software that they really care about, and maybe even have them discover this capability through the software center. Currently you have to find PPAs or maybe activate backports to do this. But having a stable release with a six month cadence plus the option to stay cutting edge on certain packags (at your own risk) is not really a rolling release.