Extending the Touchscreen is a thesis project by Michael Knuepfel. The project provides working examples on how an iPad or iPhone touchscreen can be extended beyond the normal usage. The system uses conductive materials to help the user interact with an application or device in more depth than what normally can be achieved.
This includes mechanical integration such as the robot seen in the image above (and demonstrated in the video below), as well as better touch interaction with games and other apps. The idea behind it is to create touchscreen displays that are more tactile and easier to use.
Take a look at the video below to see some very impressive work:
Via: Coolest Gadgets