As someone having a little over 6 TB of ZFS storage in my Linux home server: How does that fit the 'One file system on Linux, OS X and _Windows_' requirement?

As someone having a little over 6 TB of ZFS storage in my Linux home server: How does that fit the 'One file system on Linux, OS X and _Windows_' requirement? ZFS is useless for this scenario. No need to sell it if it cannot even start in this competition. Edit: On top of that, some features that you're selling aren't completely available cross-platform (i.e. builtin NTS/SMB support on Linux, encryption is(?) Solaris only iirc).