Exter-C asks: "2006 was the year that a large amount of people started to talk Ubuntu as a possible contender for the Enterprise Linux desktop. There are several key issues that have to be raised: Is Ubuntu/Canonical really capable of maintaining Dapper Drake (6.06 LTS) for 5 years? I know this is not a new question but the evidence after 6 months seems to be negative. A case in point is the 4-5+ day delay for critical updates to packages like Firefox. Given that such a large percentage of people use their desktop systems on the web critical, browser vulnerabilities seem to be one of the core pieces of a secure desktop environment (user stupidity excluded). Can Ubuntu/Canonical really compete with the likes of Red Hat, who had patches available (RHSA-2006:0758) the day that the updates came out?"