I have a SL-5500 with Openzaurus 3.5.2 and oc pc side, Mandrake 10.1 I can ping zaurus from pc and viceversa. After some seconds I lost connection.
Searching in /var/log/messages I get this error:
unregister usbnet usb-0000:00:1d.0-1, Sharp Zaurus SL-5x00
After zaurus re-register, but I lost the vnc connection