Hello
I have started the MIDI interface driver now and it looks promising. I have a custom component program complete with a MIDI USB descriptor that compiles anyway. The problem im having at the moment is that a lot of the low level usb midi endpoint communications is currently written in assembler in the example im using so its going to take a little while for me to dig through this and make it Flowcode friendly.
However good progress for one night
For now I suggest you have a play with the existing USB components they are quite fun to play with if you have the ECIO or any USB PIC microcontroller.