The iPad Pro M4 could kickstart Apple's generation of ultra-thin devices, including the iPhone, MacBook Pro, and Apple Watch. The thinness of the iPad Pro M4. Photo: The Verge. In a Bloomberg Power On report, reporter Mark Gurman said that Apple plans to thin out the iPhone, MacBook Pro and Apple Watch. Previously, the company unveiled the iPad Pro M4, Apple's thinnest device ever (5.1 mm). I know that Apple is focusing on developing a significantly thinner phone, launching at the same time as the iPhone 17 in 2025. The company also wants to reduce the thinness of the MacBook Pro and Apple Watch. The iPad Pro is planned to be the start of Apple's new generation of devices, including the thinnest, lightest products in their portfolio across the entire technology industry," Gurman wrote. This is not the first time rumors have appeared about ultra-thin iPhones. In May, The Information…