iPhone Duo delivery dates slip to January after pre-orders open

Estimated iPhone Duo shipping dates began slipping to January within a minute of pre-orders opening on Friday. The shortage likely reflects a mix of strong demand and manufacturing complexity, especially the hinge, which limits supply.

• Pre-orders opened Friday, some orders now ship in January
• Apple cites high demand; analysts point to hinge complexity
• Low yield rates constrain manufacturing volumes
• Apple often moves estimated delivery dates earlier later on