It is on it's way, Zozosoft is kindly helping with some testing, just sorting out a few issues with the new processor speed-independent disk I/O and turbo support.
I think it is safe to say it is beyond any "show stopping" issues now: FAT-16/32-bit sectors have been working fine for sometime now, it fits into the available ROM space etc.
I'll post here when it's ready!
Here is a preliminary specification / manual, everything still subject to change!