Woo hoo! This message is being posted from my laptop, downstairs at the convent. Best of all, there are no wires connecting the laptop to anything! By using the CVS version of the zd1211 driver available at http://sourceforge.net/projects/zd1211, my cheap ONeXQ UR-055g 802.11g USB wireless adapter is working.
It’s still a bit difficult getting it to work properly, though. I haven’t figured out how to get it to resolve an address via DHCP, so I had to give it one manually with ifconfig. I then had to use the route command to set up the default gateway. It’s a beta driver, though the developers have done some great work in cleaning up the code from the original Zydas reference driver. That code looked like it was modified from a driver for a different chip but the job wasn’t quite finished.