Apple's Duo could spur a bigger upgrade cycle because its foldable form factor gives users a new reason to buy. It reportedly sold out within minutes, but Foxconn's roughly 60% assembly yield may exaggerate demand; sustained lead times as yields improve could support 2027 revenue. Early costs may pressure margins and local AI monetization remains unproven. Premium hardware and local AI could make Apple the world's most valuable company again. x.com