Skeumorphism has its place, for sure. The drawing apps (particularly Paper) are excellent examples: they dictate their function in an elegant and subtle way. Paper is clearly for jotting down and collecting your thoughts. Brushes is clearly for more intense, focused illustration/mind mapping sessions.<p>The example that wanders into dangerous territory, though, is the desktop version of Photo Booth. While all the others I've mentioned serve to suggest what the app <i>can do</i>, Photo Booth's gaudy curtains-and-wood-paneling design dictates what you <i>should do</i>. It limits the range of the software's potential uses; the old grey photo booth was clearly a program for taking photos of anything you wanted with your front camera, while the new version is more apparently only for dicking around with your friends and taking silly distorted pictures. The skeumorphism of Paper serves to make the app more intuitive; the skeumorphism of Photo Booth serves only to constrict.