Won't it try to rotate about one's hand when one swipes up or down?
Out of curiosity, Does anyone know what tools are usually used to make composite videos like the one of the animated UI here?
Photoshop and some raytraced 3d rendering system... (Blender/YafaRay or Rhino/Brazil perhaps) Looking forward to what apple comes up with, I've got a few guesses, but if my guesses are correct I'd rather see it be a surprise.