Apple says it only has ‘limited’ iPhone Duo units for in-store sales

Apple says it will have "limited" iPhone Duo models for sale in stores, according to a report from Reuters . The iPhone Duo launches on Friday, October 23rd, but online preorders quickly sold out , with some delivery estimates extending into next year. The iPhone Duo is Apple's first foldable, offering a 5.4-inch outer display and 7.6-inch inner screen.