I have AutoCAD 2007. Let's say I need to get a copy of my drawing to someone who doesn't have AutoCAD. Let's say I am in a hurry. I can browse folders for my drawing, select it, and right click:
This will invoke AutoCAD which will publish the DWF, invoke my email reader, create a new message, start drafting the email by inserting a subject and some message text, attach the DWF, and set me up me to edit the message. Although this functionality exists within Autodesk Design Review today, with the free Autodesk Design Review 2008, the message will look like:
Now wasn't that easy?