Comment 41 for bug 499445

Jockey doesn't deal with the driver blacklist any longer as I moved the logic into the bcmwl package in Karmic.

The post-installation script of the package blacklists b43 and ssb:
http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/karmic/bcmwl/karmic/annotate/head:/debian/bcmwl-kernel-source.postinst

According to bug #393689 the wl module can't be loaded if b43 and ssb are already loaded, therefore I'm afraid you'll have to choose between wifi and bluetooth.