Future of Interaction Design - Bret Vector

Here is an excellent article on future of interaction design which pushes you to think beyond 'touch' and 'glass'. This article reminded me of the multi-sensory course we did while studying design at N.I.D. I would like to include the last part of the article here

Look down at your hands. Are they attached to anything? Yes — you've got arms! And shoulders, and a torso, and legs, and feet! And they all move!

Any dancer or doctor knows full well what an incredibly expressive device your body is. 300 joints! 600 muscles! Hundreds of degrees of freedom!

The next time you make breakfast, pay attention to the exquisitely intricate choreography of opening cupboards and pouring the milk — notice how your limbs move in space, how effortlessly you use your weight and balance. The only reason your mind doesn't explode every morning from the sheer awesomeness of your balletic achievement is that everyone else in the world can do this as well.
With an entire body at your command, do you seriously think the Future Of Interaction should be a single finger?