I'm sorry, but that is stupid. Just look at OSX, it has been around longer than iOS and looks very similar in its current state than its initial release. Look at OS 9, it looks nearly the same as OS 7 or even earlier. Most users complain when things change (even if they get better, look at the ribbon UI for Microsoft) and the reason they do that is because they have to relearn how to do everything. Apple is one of the rare companies that seriously puts a lot of thought and energy into every aspect of their products. When they make something, you know it will be insanely great.
What exactly are you bored with? An operating system that rarely crashes and rarely lags? You are threatening no one in lying how you'll be jumping ship because the beautiful and consistent UI makes you bored?
I for one embrace new ideas, I was wrong in my doubts of the 4" screen, I thought 3.5" was perfect. It isn't. If anyone can do a 5" device well, you know it will have an apple on it (not that Samsungs notes aren't great, they're just not as good as they could be).
I'm over the moon with my iPhone 5, the jailbreak tweaks keep me happy for the little things that I want different. But I haven't really touched changing the look, because it already is very nice. I'm hoping to keep this phone for ages, and sure as hell won't be swapping it for a lesser device because rounded squares are lame. Lol.