[shaddi]

I'm pretty sure this is the issue. Google wouldn't know to treat Dropbox "special" just because they switched domains. "dropbox.com" hasn't been around long enough in its current incarnation for it to be "clear that [it] isn't a random site freely dropping malware around the web."

See: http://news.ycombinator.com/item?id=934704

[zachware]

But then what's the point of the change of address tool in Google Webmaster Tools?

Screenshot: http://bit.ly/4xZpA8

[shaddi]

Obviously it is for this purpose, but the fact that it exists doesn't mean it was used properly in this case or that their change notice was updated in a timely fashion.