Interestingly, they don't deal with "edgy" material (probably something completely stupid to think of, like playing as a rapist or something else unspeakably "edgy") which is probably for the best. What they do look for are more open-ended gameplay mechanics -- linearity is a thing of the past, ostensibly. It all seems so interesting! I'd love to try my hand at offering some ideas, but I live way too far from San Francisco to think about it. So go ahead, submit yo'self, or leave a couple of your fleeting ideas here and we'll talk about them.