Myke Hurley of Relay FM noticed the issue earlier today.
So here's a thing. Cover your iPhone 7 home button with material (like from a t-shirt) and try to click it.
I think I worked it out, the TouchID sensor is what's making the connection. No sensor connection, no click.
This may become a problem for those in colder climates who will soon be wearing gloves. Early reports suggest that even capacitive touch gloves don't work.
David Smith founder of Developing Perspective tweets:
Just tried my “capacitive touch” gloves, no dice. Looks like we’ll all be using assistive touch this winter.
Daring Fireball's John Gruber notes, "It’s the capacitive ring around the Touch ID sensor that needs contact with skin — that’s what turns on the sensor. This means no home button clicking while wearing gloves — yet another reason cast a stink eye in the direction of this new home button."
Will this be an issue for you? Let us know in the comments and please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.