I recall reading an article a few months back that MS has begun their own campaign to get IE6 users upgraded (to IE8 of course). This is really not a big blow to Microsoft.
I noticed that when I open IE6 for testing (using iesforlinux actually), about 1/3 of the time it redirects to an IE8 download page, rather than showing the home page I have set in the options.
Also, some of MS's own pages on bing/live throw scripting errors in IE6! If they're not paying attention to IE6, I hope that means I don't have to any more, either.