There's a new iPhone, and so of course there must be a new iPhone Plus as well.<br />After running through some stats illustrating the iPhone's remarkable growth in China, Tim Cook introduced this year's generation, called the iPhone 6S.<br />"The only thing that's changed is everything," says Cook.<br />"These are the most advanced smartphones in the world."<br />The iPhone 6S Plus retains its 5.5-inch Retina display, but this time it's covered by a new, even tougher glass, which Apple describes as the strongest in the industry.<br />It will also feature 3D Touch, implementing a version of the Force Touch functionality that was first introduced with the Apple Watch and MacBook touchpads earlier this year.<br />This has been woven in throughout the iOS interface and default apps to give extra contextual functionality tied to pressure detection.