It's great to see Microsoft treating a threat of this severity appropriately. When I booted up my machine this morning (long before this Slashdot article was posted) I was greeted with a Windows Update message offering me a patch to this vulnerability. I didn't even know it existed! I was able to patch first, and ask questions later.
My only complaint is that MS seems less concerned with many less severe vulnerabilities. You'd think a corporation of their size would have a whole department devoted solely to fixing all security (and other) flaws.