A version of the Conficker Worm is scheduled to start doing things today, April 1, 2009. Brian Krebs in his column "Security Fix" at The Washington Post" has a roundup of reports of some more notable incidents.

voices.washingtonpost.com/secu ...

Slashdot has some additional reports.

tech.slashdot.org/article.pl?s ...

These are pretty good too:

What You Need to Know About Conficker and How to Avoid Being a Victim: maximumpc.com/article/news/wha ...

Protecting yourself from the Conficker Worm: mcafee.com/us/threat_center/co ...

Has it actualy done anything yet?
I've been checking for posts about it every so often today but havn't seen anything so far:/