The Beyond Adobe Reader window opens by default when you start Reader from the application icon, Start menu (Windows), or Dock (Mac OS). The home page in this window contains links that open additional pages, which may include buttons and links that start specific tasks or display topics in the full Reader Help system (which you are reading now).
Use the controls on the left side of the page to expand the list of new features in Adobe Reader 8.0.
You can close and reopen the Beyond Adobe Reader window, or simply let it remain open behind or beside the Reader work area.