Gestural (touch) UI is gaining momentum as a suitable companion, and in some cases worthy replacement, to the traditional UI via peripheral device input.

Of course, with this momentum comes revised thinking about how we design for interaction. To this end, San Francisco-based Punchcut, an agency specializing in mobile design, threw together a very brief video demonstrating five considerations to keep in mind when designing for touch. (Beautiful job on motion design btw, guys.)

The more detailed article that preceded the video can be found here: Design Considerations for Touch UI.