Louie Mantia:

Skeuomorphism is a word that everyone disagrees on what it means (or suggests it means all of the above), but is often used to discriminate apps that use realistic textures for the sake of joy, beauty, and delight. When you’re talking about an app that uses realistic textures, call that “theming” or “skinning” because before last year, that’s what we called it, and that’s what it is.

Mantia on Skeuomorphism