Morrus said:Eh? You think WotC should give away their rules, but if others use the rules WotC has given away, they shouldn't have to give anything back? Would you like Scott Rouse's car, too? I mean - WotC isn't a charity!
No chance that will happen. Even the most benevolent busines in a world wouldn't just give everything away unconditionally. What would be the point of spending hundreds of thousands of dollars developing it in the first place?
It's also worth pointing out that the d20 STL specifically requires that a portion of the published material be Open Content. I wouldn't be surprised if that made it into the GSL in some fashion.