"...it's another little example of the way the ipod/iphone is such an attention-demanding device. It doesn't orient to you, it orients to itself." Yes. This is a problem.

"Cosmovox is a unique and innovative musical instrument for the iPhone and iPod touch." Nearly a theremin. Nearly.

"Trism uses the touchscreen to manipulate the triangles on the screen, but in a really smart twist, the blocks will fall down in a different way, depending on which direction you're tilting the phone". Wonderful. Watch the video, and try not to grin.