Thomas, thank you for the link, I know have better success. I uncommented the line:
attribute-override-list = "vid=* reduced-cmd-support=true"; in /kernel/dev/scsa2usb.conf, rebooted and now most, but not all, of my devices are automatically mounted in /media and a Nautilus window is opened. So, not too bad a result. This message posted from opensolaris.org
