Apple officially announced the new iPhone 15 lineup at its Wonderlust event, which will go up for preorder on September 15th and ship a week later on September 22nd. Much like last year, there’s a baseline iPhone 15, a larger iPhone 15 Plus, and a pair of Pro models known as the iPhone 15 Pro and iPhone 15 Pro Max. But while the expected processor bump to a new A17 Pro Bionic chip is here for the 15 Pro and 15 Pro Max (the standard 15 and 15 Plus get last year’s A16 Bionic), what’s…