Check this page for a collection of brief videos about new capabilities in Office 2010
Microsoft® Office 2010 gives you rich and powerful new ways to deliver your best work whether you’re at work, home, or school on a computer, Web browser, or Smartphone. Grab your audience’s attention and inspire them with your ideas using enhanced tools, customizable templates, and photo editing capabilities. Work with multiple people from different locations at the exact same time using new co-authoring capabilities. By offering more ways to access your files from virtually anywhere, Office 2010 puts you in control.