The original CD ROMs, for example, often had a home screen that started with a bookshelf, and you clicked on the ‘book’ you wanted to ‘open’ (excessive use of quotations intentional). Here’s the thing: bookshelves are a great idea if you want to store actual books on an actual shelf. They’re a silly way to index digital information, though.
I agree that design can’t get in the way of how we use something, but Skeuomorphic design also adds a level of familiarity to the new digital products we’re using. I’m still a fan of using it.