I was previously a member of the Human Interface Device Prototyping Group at Apple. This is a small exploratory design team of hybrid designers/developers. They explore what new technologies might bring to current and future Apple products. As a member of the team, it was my job to invent and propose new features and sometimes entirely new products.
While many of the projects I worked on during my time at Apple are confidential because they are unreleased, some released products and features I prototyped for include:
iPhone X - navigation gestures
iOS 10 - Messages update