MotionPhone is now available as an app for the iPad and iPhone. The app lets people create abstract animations together over a network, choosing colors, shapes, and forms that follow their fingers’ most subtle movements. By moving again-and-again in the same animated canvas, people can create layers and rhythms of abstract form and color, much like musicians layer track after track of audio in the studio sessions.

Over the past few days my first three apps became available on the iTunes store: Gravilux, Bubble Harp, and Antograph. I’ve been dreaming of this day for twenty years: a day when, for the first time, we can enjoy interactive art as a media commodity no different from books, music, and movies. But is there a market for this new medium?