Take a look, Microsoft has created a public SharePoint site and one of the MSDN/TechNet Bloggers has moved over there. I wonder how long before the others start porting their blogs over?
It really makes sense to me to have Microsoft bloggers using the SharePoint 2007 blogging functionality. Microsoft.com was the first part to show that SharePoint can scale and moving their blogs over will just prove the point even more.
Congrats on the move!