Just over a year ago, Microsoft launched Exchange Server 2010, with a tremendous response from the market, partners, and customers.
Over the past year, Microsoft released Exchange Server 2010 SP1. This release had a number of features you asked for, including archiving enhancements and Outlook Web App improvements, making it even easier to deploy and manage Exchange 2010 and increase productivity.
Also, "our research shows that Exchange market share continues to grow. In enterprises with over 500 PC's, Exchange is, by far, the most widely used business email. For e.g., in the US, UK, and Australia, well over 70% of enterprises primarily use Exchange. In each of the largest G7 countries, in every size organization from small companies with less than 25 PC's to the largest enterprises, Exchange is being used by more businesses than any other email system. And many organizations are quickly moving to Exchange 2010. In US and Canada, over 12% of large companies have already upgraded. Plus, over 11 million users of Live@Edu are using Exchange 2010 online," stated Microsoft.