The iPhone is extremely boring. I've been sick of looking at the same old boring UI for several months. It just doesn't interest me anymore. I plan on switching to Verizon soon.
I think you're missing the point. I'm happy when I know how to navigate through a UI blindfold. At the end of the day it's a tool to use, not a problem to solve.
I can't think of much worse than having to learn a new UI everytime I got "bored". One of the good things about the iOS is the ease at which you can navigate around it and use it. It's designed to be quick to learn. It's not a game that continually tests your ability.
Got a Tokyo Flash watch yet?