Dude, awesome comment ! In fact one of the best in my last 10 years of slashdot experience !! Last sentence is probably the best single line I have ever read in slashdot.
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> SAMBA 4 as a simple directory replacement for Active Directory is no where near ready.
Its in last or second last RC stage right now and final version is expected by end of this month
> But, even if it was close, it would still be lacking "minor" things like a dead simple and reliable GUI that even end users can use
Integration with Zentyal (www.zentyal.org) is already in place and it has a "dead simple" GUI for every common tasks required by the admins
> It would still lack integration into third party application capabilities for Share Point and Exchange-like apps
Based on samba4, SOGo(www.sogo.nu) has released sogo version 2 which is a feature-by-feature replacement for exchange and has native outlook compatibility. If this is integrated with Zentyal, it should be a perfect replacement for AD/Exchange combination
> Even if SAMBA 4 were vastly superior technically, it would still have no chance against the integration and ease of use that Active Directory has over the most prevalent and widely used operating systems and applications on the planet.
You forget one very important point here. Along with all the deployments and usage of AD, there are lot of problems too like stability, virus, worms, license etc. People are desperately looking for an alternative based on Linux. If they can get something solving these core issues, they are ready to make "compromise" on some peripheral features and problems.
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