KEY TAKEAWAYSApple's latest smartphone, the iPhone 16, will be available in stores starting today, following disappointing Wall Street feedback from pre-order data.Potentially weighing on the models' popularity is that the tech giant's AI model, Apple Intelligence, won't be available immediately but will come later as a free software update.In the lineup for sales at almost 60 countries globally are the standard the 16 and 16 Plus models, as well as the higher-end Pro and Pro Max. Apple's (AAPL) latest smar ...