Update to previous post: Starting with Vista Service Pack 1 (available in early 2008) Microsoft will no longer disable your computer if “Windows Genuine Advantage” decides that your copy of Vista isn’t genuine.
Instead it will bombard you with messages telling you what a wicked pirate you are and urging you to pay up at once. No doubt this will still continue to catch a lot of innocent people, but at least they won’t be locked out of their computers.
via Ars Technica.