Microsoft ActiveSync in Microsoft Exchange Server 2007 and Exchange Server 2007 Service Pack 1 (SP1) include several new and enhanced features that can help improve the user experience. When you combine the new Exchange features with the latest version of Microsoft Windows Mobile, you can increase performance and usability and help make your mobile device more secure.
In Exchange Server 2007 SP1, multiple mobility creation is enabled. User can use the ActiveSync policies to control mobile devices.