ACLs under osx

[Wesley W. Terpstra]

Ok, I've done some reading on this topic. osx ACLs are much more like  
windows than posix. You can read about them here:
	http://www.bresink.com/osx/193281/Docs-en/ACL.html
It seems that suse and unitedlinux have defined a mapping between  
windows and posix acls for samba:
	http://www.suse.de/~agruen/acl/linux-acls/online/

I suppose one could do the same mapping for osx rsync. However, this  
will lose information when using rsync to backup a mac (all the  
special rights).

What does rsync do when saving ACLs from windows?