Yahoo Games Dances to Rhythm of iPod touch
Like the iPhone 3G, the iPod touch is sensitive to motion and stimulus, making gameplay a funtastically engaging experience. To illustrate that, the Yahoo Games page "reacts" to the movement of the gamer in this piece by TBWA/Media Arts Lab.
Wii did something similar on YouTube to promote Wario Land: Shake It!. And every once in awhile, a somewhat-less-awesome page manipulation spot for Marley & Me appears on MySpace. (In it, the dog Marley drags a leaderboard across the screen, knocking stuff around as he moves.)