Via Web Standards Project:
Microsoft has announced that they will cease all support for IE/Mac as of December 31, 2005 and will cease all distribution of the software on January 31, 2006.
While IE/Mac has become something of a red-headed stepchild in the past couple years, it has a proud history of standards-related achievements, most of which were the result of now-WaSP, then Microsoftie Tantek Çelik.
This milestone doesn't actually mean much for working web developers — how much effort to put into supporting a given browser is best determined by audience share, not whether the browser is currently 'supported' or not. Nevertheless, it's a bittersweet reminder of the creeping obsolescence of what was arguably the single piece of software most responsible for kicking off the CSS layout revolution.