The iPad Air is everything that’s wrong with Apple’s tablets

With the surprise update of the iPad mini at the California Streaming event, Apple’s tablet lineup now has a series of strong offerings across the board, from the base model ninth-generation iPad all the way up to the 12.9-inch iPad Pro. At first glance, it seems like there’s something for everyone—but look closer, and the cracks start to show.The high-end and low-end of the lineup have been pretty clearly staked out: Nobody who’s in the market for a $329 iPad is serious