I haven't been keeping a weather eye on WotC since 4e failed to light my fire and I ran into the open arms of Labyrinth Lord. Luckily, fellow Austinite mxyzplk has been paying attention and brings word of the latest itteration of the 4e GSL. He says it's better, but not great:
Well, the other big change is that they removed the remaining “poison pill” clause. This clause basically said that “you can’t publish the same stuff under the OGL and GSL.” In other words, if you want to create a 4e version of an adventure, campaign setting, etc. that is also available via OGL - you have to give up the OGL. Of course, this meant that everyone with multiple product lines including OGL stuff - Green Ronin’s Freeport, for example - wouldn’t touch 4e with a ten foot pole.
Now, apparently, you could put out a “4e Guide to Freeport,” adapt existing 3.5e adventures to 4e, etc. You can’t dual-stat; the FAQ states that, say, using Cleric as defined in the OGL inside a GSL-licensed product violates the “don’t redefine things” clause in the GSL. That’s a little annoying - I fail to see how they have a vested interest in someone not dual-statting an adventure, for example - but it’s a minor restriction in lieu of the previous huge ass one.
There's a lot more at the link, so if you're a 4e fan or just curious what your favorite third party publishers might get up to, be sure to read the whole thing.
I have to wonder if this helped inspire Necromancer Games' interest in producing an "old school" version of 4e. Frankly, I'm not certain they're barking up the right trees; the first thing I'd tackle is the treasure and magic item creation rules, and then work my way back to character classes and powers. It'll still be interesting to see what they come up with.