Air - Air embraces the human nature to shape things to one's own desires, and to feel and learn through tactile senses. Coating the back surface of the phone is a modern day version of the sequin. As you drag your fingers along the surface, your fingertips leave a subtle trail, and a new, subtly different pattern is born. The surface also arouses the auditory senses, with a soft clickity clack when you shift the tiles.
watch the video on Youtube:
http://www.youtube.com/watch?v=jFm2a8Mw_rE