I haven't seen much on the subject of Droid USB host mode lately. I made myself a little hack dongle and a cord that connects from male micro USB to female USB, and everything seems to work very well. In fact, I'm typing this on my droid using a real full keyboard.
Anyways, unfortunately a USB keyboard seems to be the only device that the kernel I'm using has support for. It's a normal voltage 900mhz max sapphire kernel If I remember correctly. Do any of you know where I can find a kernel with more support for USB devices, or alternatively, how I can add some to this one?