Hmm, I'm about to watch the demonstration, but my first impressions are, it looks like a dvd remote, and how on earth would you press the A button for example while using the D pad if its faced up that way by standard?...
Anyway, lets watch it
Well, its very interesting (except for the english voice which is really...well like a robot lol). I like the way the buttons are at the back, and also the movment option for games and the expansion (the expansion would more likely be for racing games, etc which would be impossible to play almost without it)
I don't really like the option of making characters jump by puling it up, but FP shooters I know will gain alot from it, and also initutive games usually made by Nintendo anyway, for example music games.
So to me, it has rather kewl features, but I have a feeling developers will have to change there ways a rather lot, but I do know the games will be fun to play, though sometimes, you might not want to point at the screen all the time.
I'm sure it'd be a great experience though, and so...not bad really. Its definietly not what I expected.