Today's interaction between humans and computers does not significantly differ from the interaction that was provided through the early "personal computers" in the 1980s. Hence, keyboard and mouse are still predominant in standard computer products regarding the consumer market. Nevertheless, the popular gaming console Wii manufactured by Nintendo has proven the feasibility of new input device technologies employing full body interaction, which furthermore were exceedingly accepted by known gamers as well as casual users all over the world. This example shows the favor for new interaction...