In the same box (dual boot). If I boot openSUSE 12.2 the card is recognized by Yast>Network Devices and I can configure it. If I boot 12.3 it does not show up. hwinfo --pci identifies it, and so does Yast hardware information.
Ah yes, the magic word “firmware”. A quick check on what was installed in the 12.2 version showed that the 12.3 version lacked b43-firmware. That’s because it’s proprietary and not included during my brand new installation of 12.3. Adding the Packman repository and searching for b43 brought an instant response, and quick installation.