I'm going to try a lot of USB device, but I have to first mod my homemade USB host cable.
I tried a whole bunch on my W-ZERO3 es, and a lot of device worked on the WM5.0, including my iPod Video 5.5G 30GB.
USB keyboard worked, also USB mouse with HID driver. I think I have a Fujitsu Wifi LAN working on Sigmairon III, but need to test it first.
Oh yes. I have something... A RZ2002 MSI wifi card
(PCMCIA
) worked on my MC-R520 with the PRISM driver.
I still need to figure out how to get the Mass Storage driver for my Sig 3