Nowind has released new firmware for their USB hardware. This is the firmware as it was used at the end of the day at the Bussum fair, a week ago. The most important changes are a fix for write support and a "call image" feature that can change the inserted image by entering the name of the image on an MSX, like: _image( "somedisk.dsk" ).
. I guess I can assemble it myself, but "The current nowind firmware can be downloaded here" <-- link no worky