Visit lets you write and read GPS located AR-Messages wherever you want.
In the interactive design class in my third semester, held by Prof. Erich Schöls, me and a fellow student came up with the concept for an augmented reality text messenger, that allows the user to stick personal virtual notes onto any location. The acceleration sensor detects wether the cellphone is shaken softly or tossed hard. The appearance of the text is determined by the values delivered from the acceleration sensor - with this function the user is able to show his mood in a typographically way.
The final version of Visit will be able to display augmented reality messages sent from cellphone to cellphone, whereas the virtual letters might be displayed broken due to a hard toss or faint after a soft shake.