Something I didn’t mention in my initial posts about SoBig: the worm can send mail by itself, since it contains its own SMTP server, and will forge return addresses based on entries in your Outlook address book or your Internet cache. So if you see email from me, no, I’m not infected with the virus, but someone else who knows me or has read my web page is.
Technical details of SoBig at the Berkman Geekroom. Reaction from Kevin Werbach: “either email is broken, Microsoft’s email software is broken, or those two statements are the same.” Rob McNair-Huff at MacNetJournal has been hit hard, as has Mark Frauenfelder at Boing-Boing.