Yes, its the last board category, however if its IE 6 will never be supported i suspect. Simply because theres no point, even google is phasing IE 6 out right as we speak. I mean people have has 6 years to migrate.
Smply put older IE's 6 is causing as much development time to be used as all newer browsers combined. Then theres 5 series and 5 series that might need to be looked at again double the development effort for each branch. Basically the end of IE 6 is here, and if your business didnt update your tools by now then you will have to suffer.