The MTV blog managed to squeeze a little more information out of the upcoming live-action Cowboy Bebop flick, and answered one of my top three questions: who is writing the script? (Right between “who is directing it?” and “who'll play Faye, Jet, and Ed?”)
The answer is Peter Craig, who is best-known for dark comedy novels like The Martini Shot and Hot Plastic. From what information I can find, he's been working as a screenwriter in Venice Beach, but I can only find listings for films that are upcoming, none that are already out. That said, the films he's working on include the 2010 Prince of Thieves and an adaptation of his own novel, Hot Plastic.
I'm trying to find out if I can get in touch with Craig and find out more about what he's doing with the film, if he can talk about it...who knows? Maybe he's a fan!