@LiamHawes,
Indeed, I am still running iOS 5 on all my iToys, and on all of them the Photos app ignores the key photo for events. I cannot fathom the logic of retaining the feature in OS X and "dropping" it in iOS, yet missing no opportunity to emphasize how the two are converging. I guess Apple doesn't adhere to the standard mathematical definition of convergence.
@All,
I have used Feedback to report all sorts of problems. The reports seem to disappear in a black hole. Nothing ever happens. Nobody ever acknowledges the feedback and the problems never get fixed. Apple Care is getting to be just as bad. Problems are quickly escalated, and a second-level support agent swears up and down that he'll report the problem to Engineering and get back to me. Black hole here, too. Just recently I discussed a problem with what must be a next-generation second-level support agent. He had me create a new account and try to reproduce the problem there. When I succeeded, he decided that that proved that it was a feature, i.e., intended by Engineering, not a bug. "Oh, I understand," I replied. "So if a program were crashing and I could duplicate that in a new account, that would prove that it was supposed to crash, right?" Black hole.
I am really puzzled how year after year Apple support is voted the best. The Apple Maps fiasco was a desaster waiting to happen. The software engineers are apparently so convinced that they're God's gift to software development, and, consequently, that all other software developers are cretins, that they've unilaterally declared testing obsolete. First-rate developers don't make mistakes, second-rate developers test. And now, even support seems to have bought into this attitude. Support's mission, evidently, is to ensure that all the cool features that all the cool developers have built into the programs receive the appreciation that they deserve, or, at least, don't get mistaken for bugs.
Richard