Not particularly well animated nor programmed, Mobile Runner is more of a proof of concept than anything else. What it also shows that you don't have to develop an awesome app / interface to engage. It is the imagination that engages and the interface is just the result. Mobile Runner is a simple animated man that reacts to iPhone accelerometer with a simple tap to jump button. On it's own, the app doesn't do much, it is what happens when Mobile Runner engages with physical environment thanks to mobile Optoma pico projector. Mobile Runner jumps over trashcans, up the stairs, over the walls, all of this very reminiscent of child like play with Transformers fighting each other or toy cars smashing against one another. Call it augmented reality or just new reality that inherits characteristics of real life. App or no app, child play or not, it's sure fun.