ARForce - another Infrared AR Concept

ARForce - another Infrared AR Concept

The following video tells it all (but I'll write a short blurb to justify my non-existent salary). ARForce is a sensor coming from the university of Tokyo, that can tell the position, magnitude and direction of the force applied to it by the user. It also has multi-touch capabilities.
ARForce is embedded with an array of dots, visible under infrared light and a camera. When pressed, the dots slightly realign, enabling the calculation of the pressure vector. Different initial arrangements of the dots can identify different input devices.



Though such a device is not strictly related to AR (apart from its name, and the demo presented above), it does show the viability of infrared markers, at least for indoors AR. Any thoughts on the subject?