[citation][nom]Thomas Creel[/nom]Would prefer if they iPhone 6 came out first, then when the iPhne 5s came out no one would buy it. The iphone 5 is so useless, same thing as the 4 version.[/citation]
Version 4 was a huge step from the 3GS. No subsequent launch as had such a leap.
From the software and hardware side there were major changes in the 4.
From building materials, going to retina display (huge leap in screen resolution, PPI), faster graphics, processing from the 3GS. The adding of the front camera for FaceTime. The improved back camera with a LED FLash.
You clearly do not know what you're talking about.
From the iOS 4 standpoint there was major changes. To note, all iOS devices except the 1st gen iPhone and iPod touch could be move to iOS 4, which is something Android has a really bad track record in doing. Having devices support major upgrades without voiding warranty and requiring a workaround.