With all this hubbub about iOS being the home for well-designed, beautiful, competent indie apps, remember that that was once the Mac’s realm — and, today, almost all the Mastodon clients popping up are ‘just’ iPhone apps running in a window, in one form or another. Shifts happen, and the world moves on, if you take your foot off the gas as platform provider. There is a huge headset-shaped distraction coming that could push all of Apple’s platform priorities down a notch. A cautionary tale