"In order for USB devices to work, the drivers have to be loaded by the OS first, so I don't think that'll work... Unless of course someone comes out with a hacked Kickstart ROM that covers this."
The Algor has a flashrom to store Poseidon and its classes, there's no need to burn new kickstart roms :-)
I haven't tested it but I know that it automounts USB memory units... I'm not sure if they can be made bootable, etc...