Apple is getting ready for its most massive product launch yet with the iPhone 6, with Business Insider pointing to a new RBC note to investors that says the upcoming smartphone will be a smash hit for the iPhone maker. “Most supply chain data is pointing towards Apple gearing up to ramp 70-80 million iPhone 6 units across the two form factors (4.7”/5.5”),” RBC analyst Amit Daryanani said. “This is a notable uptick from last year when the supply chain ramped 50-60 million units.”