Secure your Google Apps with GApps Manager and take complete control over Google Apps access, restrict user based on IP address, restrict users based on organization unit (OU), create and enforce security policies. Google Apps end-users will enjoy GApps Manager single sign on across mobile, web and desktop.

GApps Manager offers a SAML-based Single Sign On (SSO) service that provides companies with full control over the authorization and authentication of google apps user that can access web-based applications like Gmail or Google Calendar. See video - http://screencast.com/t/DlrA3dmFEVfA