how about a case with something either permanently attached or able to be snapped on/off. the panel would have a series of joysticks.buttons to match the different emulators avaialable (would be interchangeable) and on the other side the buttons/joysticks would have some soft stylus material. so you move the joystick down and it hits the up button, but maybe there could be a mod in the apps so up is down and left is right. and push buttns makes the sensitive pads underneath tap the screen. just a thought.