Tuxera signs up with Microsoft

Well the page your linking to there is talking about NTFS with that volume
deal and it's targetting companies that cannot use the NTFS-3G code and
related tools because it's GPL'd.

I suspect the promise of 50x improvement in performance over generic drivers
is due to the fact that a embedded programmer would be able to work
directly
with the NTFS-related functionality by using the code directly in their
applications instead of going through the file system/fuse interfaces. Much
of it is, of course, marketing hyperbole, but in low-resource environments
I can certainly see the advantage of embedding the ability to use NTFS
storage directly into a application.

So at least with the NTFS stuff it's apparently talking about dual-
licensing the code and consulting services.

I wouldn't be surprised either way if Exfat support was proprietary or will
be open eventually or whatever.

(and I wonder why with webkit browsers they always insist on inserting
newlines everywere while with firefox they don't...)