Indie games these days are really innovative and often cross genre boundaries. It would be nice if I could choose more than one genre for my game. I know I can pick one and use tags for the other, but that seems like it will arbitrarily segregate my game into one category or the other, rather than allowing it to be discovered through either. Of course, folks could game the system by assigning all the genres to their game so that no matter what you search for, it pops up - so maybe limit it to three genres per game? That should be enough for even the most innovative developer!