How wasn't ICS an innovation? It left gingerbread by light years. I use an iPhone cause I hated GB. Then started liking Android again with HC and was sold on it with ICS. Multitasking being my favorite innovation. Seeing an icon of where you left the app is so much quicker (and cooler IMO) then a row of icons.
Are you saying that there was NO phone with a high pixel density then the 4 before the 4? Or are you saying it wasn't marketed saying "you cant see individual pixels"? And if I make a list of phones with higher PPI will you claim YOU can see the pixels LCD screen or not?
Don't bother, if it doesn't say "retina" marketed to you by Apple made by Samsung and LG. Everything else never existed prior to it because it wasn't "retina".