Between rampant rumors and speculation, there’s little we don’t know about Apple’s upcoming smartphones. One of the features expected for the iPhone 5S, the expected iteration of the iPhone 5, is a fingerprint sensor built into the home button. Craig Hockenberry, on his personal blog, talks about how that fingerprint sensor might change the way we interact with our iPhones.

 From the beginning, I’ve wanted a way to protect my personal information when sharing a device with friends and family. But any secure solution to that problem would be a pain in the butt. Typing a password before launching an app? No thanks!

Craig is thinking big, beyond the possibilities of bypassing a password or swipe-to-unlock on the lock screen. Those are the obvious things, but what about some of the unobvious things we do with our iPhones, especially with other people?