I was unpleasantly surprised when Apple took a step backward a few years ago with their skeuomorphic Address Book, Calendar, and Notes apps — the stitched leather bindings, the yellow ruled paper, the bits of paper in the cardboard binder where the pages were torn out, the handwriting fonts, etc. Now they’ve done it again with the same apps and with the new Reminders app. I understand that a GUI has to look like something, but I don’t think it should look like ancient artifacts. Why should OS X apps look more old-fashioned now than they did the first decade of OS X? Probably because they have to match iOS, and maybe Apple made iOS so skeuomorphic because they thought that’s what they had to do to sell iPhones and iPads.
Personally, I don’t use any of the OS X apps anymore anyway. I have all I need in the browser: Gmail, Calendar, Contacts, Tasks, Messages, etc. And they’re not so skeuomorphic. I’ll just enjoy the overall system enhancements of OS 10.8 and not do the time warp again.