SMURFIX The driver works (Lucent Silver, in a Wallstreet, 10.3.9), I haven't seen any stability problems.
However, usability is not so nice. The driver integrates into the system as another Ethernet interface, not an Airport-like card. WLAN configuration is done with a separate control panel. That's ugly, especially if you frequenty switch locations. (Version 1.0.3)
ANONYMOUS This driver worked perfectly on my PowerBook G3 with Mac OS X for my Lucent Tech WaveLAN Silver card. I am connected to a Cisco access point. (Version 1.0.3)
ANONYMOUS I have a skyline 802.11b pc card in my G3 powerbook and have tried both the ioxperts driver and the sourceforge.net one. Although the ioxperts one has a good interface, my computer seems to get better reception with the sourceforge driver and it's free. (Version 1.0.3b1)