Yes, if you are a power-tweeter you can now use your favorite web tool Twitter.com also directly in AutoCAD. The free twitter.vlx AutoLISP utility adds the TWITTER command to AutoCAD.
With the TWITTER command (or its LISP function) you can publish messages (tweets) to your Twitter account. You can either type your message or let AutoCAD sent an automated message on some event - lengthy script has completed, error condition has arised, a project component was updated, etc.
You may not see many practical applications of this Twitter interface but it illustrates a concept of other possible integrations between CAD and web.
See more information at the ACAD-Twitter description or follow us at Twitter.