Here's two articles about how Novell is integrating with Active Directory.
From the looks of it, it's simple, quick, and intuitive to:
* Authenticate against Active Directory
* Create home directories on login
* Cache authentication (for laptops, for example)
* Get a Kerberos ticket for passwordless ssh
http://www.whiprush.org/2006/09/on_active_direc.html
http://reverendted.wordpress.com/2006/09/12/linux-goes-mad/
Andrew