Malcolm Sheppard has put together an OGL system called “Opening The Dark,” which is very much like Storyteller with the serial numbers filed off and some changes to the chassis. I need to make time to digest it at some point, but the SRD is available here. I may end up using it for Catgirl: The Storytelling Game.
I’ve also made major progress with the new version of Raspberry Heaven. I’m much more confident about it now, and depending on how much I get done I may run a playtest in a week or two. The new game is even more of a not-quite-an-RPG scene building story game, and it should be pretty easy to tweak for other things. It uses a deck of regular playing cards, and players put down cards trying to get the highest value for each phase of a scene (Introduction, Development, Turning Point, Climax) to get narration rights, but suits, special cards, and certain combinations all affect the mood and such.