I understand that, but what I'm thinking is that big commercial companies like EA might not be comfortable paying huge sums of cash to get exclusive licensing deals with id, only to compete with Joe Indie using the same technology for free. I know that id had originally held off on releasing Q3 under the GPL for a while for what appeared to be that very reason, although, it may have been that id didn't want to change the nature of the deals that had been already inked. Hard to say, but if id didn't care about this, then Doom3 would have already been GPL'd the day it was released. So one has to figure that since iPhone is a fresh market for Q3 commercial licenses, there must be some desire on their part to close up GPL licensed use of it there.