I'm worried about what the 3D Touch does to the ruggedness of the phone. With two toddlers, I don't think this phone would last 3 months in my house, even with a case.
Or is 3D Touch somehow achieved with passive sensors?
My interpretation of the keynote: The screen flexes a tiny bit when you press on it (which my iPhone 6 does as well, so this doesn't necessarily imply new materials). They now have sensors behind the screen to quantify the flexing, and translate that into "force".
Or is 3D Touch somehow achieved with passive sensors?