SuSE has an interview with one of their head guru's posted on their site talking about the features of the upcoming SuSE 9.1 release.

"Apart from kernel 2.6, Samba 3 is one of the most important new assets. Samba 3 enables operations such as the integration of Linux clients in Windows domains. Thanks to the "Active Directory" access and the possibility to configure virtual servers, Samba 3 greatly facilitates the consolidation of hardware."