This is the last unpredictable present given us by Microsoft and expecially the Sharepoint Team... they have released a complete set of Sharepoint Templates ready to use.
They're a good starting point to easily build a corporate portal system and they are tailored to address the needs and requirements for specific business processes or sets of tasks for organizations of any size and I think this is one of the sign that Sharepoint has a central part on the present and future Microsoft tecnologies (and this is why Bill Gates has nomined himself as a product leader for Sharepoint 
).
UPDATE: The official BillG's title is "Lead PM on the Windows SharePoint Services v3 User Experience team".