Macworld Everyone is wondering, what is up with the iPhone lineup? Okay, the Macalope hasn’t asked around, but he’s pretty sure everyone is wondering that. Because he, himself, has been wondering that. The iPhone lineup is in the process of some pretty big changes. This isn’t the first time it’s happened, of course, but it has been relatively stable for a number of years, albeit with some minor variations. Apple did make a small phone for a couple of years, but mostly you got a base phone lineup, sometimes with a larger size, and a Pro lineup in two sizes. Now Apple has slid the iPhone Air int...