If it’s only a skin there really is no problem (except if the skin makes it harder to identify standard UI elements). It’s only when skeumorphism impacts behav

If it’s only a skin there really is no problem (except if the skin makes it harder to identify standard UI elements). It’s only when skeumorphism impacts behavior that it becomes a serious usability issue. For example: The Address Book used to have three panes. Since Apple pressed the app into book shape for Lion they had to ditch one pane to keep with the book aesthetic. That’s a problem.