Mark Shuttleworth has responded on his blog about the Ubuntu update breakage that occurred last week.
If there is a silver lining to the error, it is that it happened during the one week in six months when we have the core distribution development team together in one place. This gave us the opportunity not just to analyse and fix the issue, and to talk about the sequence of events that led to the problem, but also to discuss the processes we must improve to further reduce the likelihood of a repeat. The team is now more aware than ever of the responsibility we assume given extraordinary rate of adoption of Ubuntu.
It's a well-written piece, and left (at least) myself with a restored confidence in the Ubuntu team for taking this as seriously as it deserves to be taken.