Both supply chain challenges and robust demand are keeping Apple (AAPL) from selling more iPhone Duos, argues Karan Ramchandani. He adds that the $1,999 price tag for the new phone helps the profit picture, though it acts as a double-edged sword in boxing out some of its regular customers. As for Apple's AI story, Karan believes the iPhone developer needs to flip the script on how it incorporates the software with its evolving hardware.