Now, he's writing The Avengers for Marvel Studios. The creation of Marvel Studios is probably one of the best things that could have happened, because, well, they actually seem to give a shit. They're actively trying to link together the stories for Iron Man, The Incredible Hulk, Thor, and Captain America, so they can make a balls-out Avengers film. Check out Penn's comment from the panel:
"They're doing Captain American and Thor first, and then Avengers is coming out. They want to see that they're all connected, not like the Fantastic Four can't come into the X-Men world, like I was told. I'm taking a meeting next week with the Thor and Captain America people, and we are all going to get together, and I will see what is going to happen. I'll see where they are leaving the characters; it's pretty complicated...There's a board that is tracking what is happening...Marvel is autonomous now. It is night and day: Everyone has read every comic. They know how to make a cool movie."
Oh. Oh yes. Oh... yessss.