[Samba] Samba 4.0 LDAP backend -- replacement for OpenLDAP?

[Ken D'Ambrosio]

I was reading up on the Linux Magazine overview of Samba 4.0
(http://www.linux-magazine.com/issue/67/Samba_4_Technical_Preview.pdf),
and noticed that Samba 4 was going to have its own LDAP backend ("LDB",
according to the article).  Since I'm planning on rolling out LDAP
authentication at my site in the not-incredibly-distant-future, should I
consider using the Samba LDAP backend instead of OpenLDAP?  Is there a
comparison of the two?

Thanks much,

-Ken D'Ambrosio