This has proved useful at an industrial level http://www.fifthlight.com/ . Kind of neat when combined with the capability to dim florescent lights.

Did I hear that right? Google has GAS?

Kernel modules have definitely been a contentious issue vis-a-vis the GPL. That being said I believe you are 100% correct. Although MadWifi is dual license, in this case linking to the kernel provides the GPL infection to force the decision. Well again they have not yet replied to me as of yet so let's hope they also come to this conclusion and release this code.