Sharepoint 2010 What's new?

I wonder that, with a use of minimum custom code use, how easy or hard would it be, compared to previous versions, to build a community portal in Sharepoint 2010, in which users upload, view and comment videos, share videos and so on.

You can ofcourse take Youtube as an example.

Thanks.

Some links from Microsoft.com:

• What's New in Microsoft SharePoint Server 2010
• What's New in SharePoint Server 2010
• Microsoft SharePoint 2010 Overview

Check out this Walkthrough:

Walkthroughs: Creating and Customizing a Video Sharing Site

http://msdn.microsoft.com/en-us/library/ff464364.aspx