Most of the whinging seems to centre around the existence of an app-store (which, as someone who uses FreeBSD ports and apt-get on a regular basis is simply a good idea, not something to be afraid of) and the (optional) removal of permanently-visible scroll-bars in favour of multi-touch swiping on the track-pad (or mouse-wheel, I suppose.) I count both of them improvements, but clearly tastes differ.
Real iOS-ification would be sandboxing applications so that they can't operate on arbitrary files in the file system, and removal of access to said file-system. I can't really see either of those happening.
Personally, I can see where the tea-leaves are pointing, and am in the progress of moving all of my daily activity into a personal "cloud" hosted on my own FreeBSD box. Then I can use osx or android or whatever has the good proprietary graphics stack at the time and just get on with it.