I would love for Apple to give us the ability to customize actions for taps on TouchID button. I hardly use "Reachability" so I would prefer to have the task-switcher come up with double-taps. Other things I can think of is: a single tap to exit to Home-screen; three taps to perform other actions; etc. This would reduce the strain on the button. For people who don't prefer this, they would still have the physical home button to do what they want. And, yes, I know jailbreak will give us this feature but not everyone jailbreaks. How many of you would prefer this customizability?