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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Lionel Cons <lionelcons1972@gmail.com>
Subject: Re: Alternate Data Stream Support in FreeBSD (was Re: O_XATTR support
 in FreeBSD?)
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>> there are additional functions for manipulating EAs that go well beyond
>> the Solaris extensions to the directory and file I/O functions.  Assuming you
>> want to be able to get/set as well as enumerate or remove EAs, then
>> you might just as well add getxattr(2), listxattr(2), removexattr(2), setxattr(2)
>> too and follow the herd (Linux and OS X, so far).
>
> You mean 'follow the lemmings down into the abyss'? :)

seems to. why just not make 2 files when two "data streams" are needed.

if compatibility is needed with other OSes (like windows with SMB export) 
- just add this to samba.