I still have all three of those iOS devices (and my wife's now retired 4S) mentioned in my original post.

The saddest thing?

The iPhone 4 has only one easy job to do. Play music in my bedroom. It can't even do that reliably. My iPhone 3G (now a desk clock) is more stable than the 4.

There's a reason I left iOS for Android on the phone side and Windows on the tablet side. I've been burned enough that I don't care to be burned again. Granted, Apple's devices are probably less prone to bloat now that Federighi took over from Forstall, but there's nothing compelling for me on the iOS side right now. A Pencil-enabled Mini would be very interesting, but that's about it.