Eric, I believe brcmsmac is the driver to try. I would test this myself but the latest image in the kernel PPA (linux- image-2.6.39-0-generic_2.6.39-0.5~20110427_amd64) hangs for me after trying to load the ramdisk.
MacbookPro 8.1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/765839 Title: Kubuntu installer not finding Wireless [bcm 4331 needs driver] -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
