Today Microsoft publically released the Microsoft Transporter Suite for Lotus Domino and it is now available for download here.
“Transporter Suite configures Directory and Free/Busy interoperability between Lotus Domino 6 or 7 and Exchange Server 2007 and Windows Server 2003 Active Directory and migration of users, mail and applications from Lotus Domino 5, 6 or 7 to Active Directory, Exchange Server 2007 and Windows SharePoint Services 3.0.”