UT,
There are people still running Mac OS 8.5 and OS 9 for jobs they need. There still will be people running it for embedded control apps or healthcare IT in 2014, specifically because the cost of certifying certain apps for FDA compliance is ridiculously expensive when you change a component like a browser.
I hope that the only IE6 that I see running by then will be Windows Server 2003 R2 with its own version of IE6 running in Citrix to support those apps

.