Seven years after foldables first promised to reshape how we carry the world in our pockets, Apple has entered the category not merely with a device that bends, but with a rethinking of what software on a folding screen ought to feel like. The iPhone Duo, launching in late October at a price that places it beyond almost any rival in the Australian market, represents Apple's characteristic wager: that tight harmony between hardware and software can transform a niche curiosity into something people genuinely need. Whether that wager pays off depends less on the phone itself than on the developer