They've not gotten to it yet.
+T, thanks for the status update. After reading the threads over at rockbox I doubt they ever will, there is some kind of power sapping going on if the USB-OTG is activated, which shortens battery life. So from a taper's point of view, this function is a bad thing. But as long as I can dual boot, I'll be fine.
So did anyone try this in the field? I can imagine those who run a flash recorder with a small flash card (2-4GB or so) using the H3xx as a backup station for festivals.
My understanding is that you can plug in most USB card readers, and they will take the power from the H3xx, so no need for any external power source for the transfer. Right?