I can appreciate that a newer version of Office now offers you Save and Don't Save when you're closing a document with unsaved changes, but I am still used to pressing Y. At the very least, couldn't they have changed it to Yes, Save? At least pressing N still works.
It's kind of aggravating watching applications drift away from keyboard navigation and being mouse only. So far, Office is doing pretty well maintaining the keyboard navigation while providing a mouse- (and tap-) friendly interface, but I run into some applications that don't even care about those of us who work faster with the keyboard. We're just an afterthought, like those horrible, horrible forms that don't have tab indexes set correctly.