I like the idea of just showing little bits of Revolution, but I wonder if that would get a reaction from the press? Certainly the gaming media would be all over it if Nintendo were to show a close-up of one piece of the new controller, for example, but the regular news outlets wouldn't give a crap and Nintendo could run the risk of slipping under the mainstream media's radar until E3 or system launch. I don't know if that matters so much anyway, but I do think it's in Nintendo's interest to hype this system up soon.
I'm guessing Nintendo wants to finalize a lot of stuff first. They're probably still tweaking a lot of things, but maybe they should just show off the non-final prototypes. There's an idea right there...Nintendo has been talking quite a bit about Revolution, but images are what we're lacking. If games are too early to show, why not show of prototypes of the system and the controllers. Even if the prototypes won't be used, it would generate interest and could probably be done in a way that doesn't give any secrets away.