I was reading the latest IGN Nintendo Minute (#20) where someone asks if there is more to know about the Revolution. George Harrison says there are a lot more details about its capabilities and gameplay still to be revealed.
What if the controller, revolutionary in itself, isn't the only new thing? We haven't seen the attachments other than the analogue stick, so maybe there's something major there.
I remember rumblings about an online service rivalling Xbox Live's, but I would see that more as doing what others are already doing. Unless it's, like, multiple times better. Not having experienced Xbox Live myself, I don't really know, but I guess it'd sound good if it was at least comparable.
What could it be? Is it truly revolutionary? If there really is more to it, it's kind of sad to see the speculation having stopped once the controller was revealed in September.
Though at the same time, it might not be much at all. They would probably save further innovations for a later Nintendo console so that the Xbox 720 and PS4 won't have an edge in that department even if they copy the one-handed remote controller.