The DR-DOS/OpenDOS Enhancement Project

There is already more info about exFAT available.
The Linux alfa sources moved to there:
[url]http://www.munted.org.uk/programming/exfat.tar.bz2[/url]

But I have also found an analysis or description here:
[url]http://www.sans.org/reading_room/whitepapers/forensics/rss/reverse_engineering_the_microsoft_exfat_file_system_33274[/url]

I agree with Bret - sooner or later will the support of exFAT be necessary.
ExFAT is aimed to flash drives. It is cool that Bret's drivers support not only INT21h functions like Georg's drivers but also INT13h so the support is possible.

In the first phase is even the driver not needed.
It will be enough, as a first step, just to add function inro some file commander (like Necromancer's DOS navigator or DOSzip commander) for mounting such drives.