Skeuomorphism, in terms with the digital frontier, pertains to the use of design cues in applications and operating systems which emulate a physical object.
Mimicking knobs, switches in audio programs and applying imitated textures to get a feel of brushed aluminum are all considered skeuomorphs [skyoo-uh-mawrf]. Lately, Apple has adopted skeuomorphs in their applications and depending on your taste you may like it or not. They have adopted leather texturing and stitching in their iCal and Address Book in the latest OS Lion. You can even see that they have torn a page on the iCal as you would tear a month off your calendar.
What do you think about the use of skeuomorphs in the digital realm? Does it improve or hinder the user experience?