Well apparently the area in the E3 demo will not be in the final game anyway. The demo was made to show off the controls, so don't be surprised if it doesn't appear in the game anyway. But you must admit that it was a good way to show that 1:1 sword movements worked with the MotionPlus.
I think a couple times would be alright but not all the time. Anyway, I thought using the stylus for every little tiny thing in Phantom Hourglass and Spirit Tracks was more gimmicky. They are still good games, but they would have been better if you didn't have to use the stylus all the time, at...