I mean the Gizmodo people are right. Apple is out of ideas. Take a look at any real fundamental differences between Leopard and Mountain Lion. The only difference is black/white UI, speed improvements, and an attempt to synergize Mac OSX and iOS. With mountian lion, they have added all the possible iOS things in Mac OSX. Besides more security and speed improvements, they are out of ideas.
Furthermore, the difference in iOS 5 to iOS 6 further show this. They have no ideas that they are forced to make the UI (especially in phone) look bad. Also, besides Passbook, there is nothing groundbreaking.
Same with Microsoft as well. There was nothing they could do to improve Windows 7 so they had to start from scratch. I personally like Windows 7 type of productivity better. But if they stuck that route, like Apple they would have no ideas. No point of fixing something that aint broke.
The fact is it just seems there is a technological road block.
So are we going to demand a totally new OS every couple of years in the name of "new ideas"???