I fail to see how the fuze v1 lacks the second requirement. If you got any info to show support of what you are saying then I would love to see it.
Being that in the normal fuze firmware you are able to set the USB to different modes for different functionality proves that the USB is capable of being controlled via software and is likely able to have the jailbreak port work with it.
Good point. I wondered if it was the mode that rockbox used that was teh problem and if that could be modified.
I just successfully compiled rockbox-3.6 (last stable release) with the "Hermes-Payload" (no disc needed) and it works just fine. Unfortunately the original source code patch doesn't work with version 3.6.
FYI the precompiled works for iPod Video 30GB also