Will Gmail Ever Catch Up? A New App May Help Google, Hurt Microsoft (GOOG, MSFT) - Silicon Alley Insider

Cemaphore Systems, the maker of MailShadow, is pitching the new Google App as a way to back up Microsoft’s Outlook and Exchange. But the NYT points out that the real value here: In theory, the software will allow users to stop paying Microsoft for use of its Exchange servers, and run Outlook, more or less for free, from Google’s servers.