How Will We Learn to Use the Multi-Touch Interfaces of the Future?

A new system of icons for explaining multi-touch interfaces makes you wonder: Is there a better solution around the corner?

Learning the iPhone is pretty simple, because there aren't that many gestures that the iPhone actually recognizes--pinch and zoom, drag and scroll, tap and select. But you can bet that the multi-touch interfaces of the coming years will be far more complex, involving an entirely new grammar of movement. And presents a formidable challenge for any graphic designer...