I think that the question wasn't very specific in the first place.
"Who owns linux? "
does that mean who owns the linux kernel, or who owns the trademark linux ? Its very confusing, however i feel that it is clear now that no one really owns linux "itself", because you can't steel it and you can make changes to it. Not only that, you could make copy's and give it to all your friends and that would be perfectly legal. But the only thing you can't seem to do is making something that isn't linux and call it "linux".