Just because I don't have much of a music collection doesn't mean I'm not interested in the "techie parts"

I am a developer and am quite interested in the prospect of being able to design something myself and put it on my phone, as romanticised a notion as that may be
I love the simplicity of iOS, but I have been using it for a while (I also own an iPad), and as I said in the OP, I am a bit bored with it. Just feel like seeing what else is out there. That being said, If Android doesn't appeal to me, and the iPhone 5 offers something real in the way of new features and improved ergonomic design (the iPhone 4/S looks hot, but is not great to hold) I won't rule out moving back. I don't see why people feel you need to be exclusively bound to one "faction".
I will def keep you guys updated and will try point out small, seemingly insignificant differences that I feel are better or worse. However, I am planning on leaving the stock OS as is for a while, at least until I have familiarised myself with it and read up enough on rooting/flashing.