For now they have run out of ideas, especially with Steve gone. How else are they meant to keep making money?
But who knows that they'll come out with next? They're very imaginative and I'm sure they are most likely working on a brand new product as we speak. they're merely using these new versions of iPad's just to keep their marketing going until they release something new. Apparently they're working on a Apple TV, like a proper TV, which Im sure they probably are and im curious as to see the design and functionality of it.