Stress Testing Capacitive Touchscreens (Droid vs iPhone)

I believe the lack of edge sensitivity on the iPhone is a feature, not a bug. It's something that's caught me out a number of times when using the Nexus One one-handed - I reach across the screen with my thumb, but the effort often causes the base "pad" of my thumb to just brush the edge of the screen. Thus, some of my "swipe" attempts get interpreted as pinch zoom, as the screen has detected two points of contact.

I don't think distortion at the edge of the screen has to do with tuning in the hardware, but a matter of how software converts sensor data into a point location.

When not at the edge, the finger touch area is typically a circle, so it is fairly easy to interpret the location as the center of the circle. The finger shape at the edge is harder to interpret.

I guess is that Nexus One's capacitive sensors is larger than the display screen, that's why the edge performance is so good.

It's kind of shocking how bad the Motorola Droid is. They're finally releasing the Droid in Canada this week, and now I'm wondering if I should wait for something more accurate.

The headline is a bit misleading. This really has nothing to do with "stress testing" (i.e. seeing how much it can take before it fails)