http://blogs.technet.com/alexmga/archive/2008/01/23/activesync-policies-in-e2k7-sp1.aspxAfter Exchange 2007 SP1 got released, additional mobility features were included along with extra policies settings to restrict their usage. Following you'll find a comprehensive matrix of these policies comparing the different versions of messaging platformen-USCommunityServer 2.1 SP1 (Build: 61025.2)