The parallax and purported improvements in accuracy are a big deal though. Even with a >100 point calibration, the stylus on my Surface Pro gets weird tracking on the screen's edges or when the pen is held at off angles.

I was sold once Panay clicked the Stylus and popped up OneNote instantly. There's a lot of value in that for people like me who still prefer to use a pen to take notes.

Yes, N-trig's edge performance is better. But Wacom is better supported in terms of software, has more granular pressure sensitivity and the pen does not require a battery.