Ryan Block is thinking along the same lines I am:
These product don’t always look revolutionary on day one. In fact, they can even be pretty hard to spot at first blush. But they’re always easy to identify in hindsight — once they’ve fundamentally changed how we do something, once they’ve caused us to question how we ever went without them.
I like his over arching point of asking the question: “Is it a great product?”. I used to be a spec sheet guy when I bought computers way back in the day, but I’ve been able to change my thinking to look at the overall product, not just the spec sheet. I think all too often many of us still want to compare based on spec sheets, because it’s the easiest way to make that comparison. Any review that offers a checklist of side-by-side features of any device, has already missed the point in my book.
The easier and more enjoyable it is to use, the more you’ll want to use it and thus the more utility you’ll get out of it.
You either get “it”, or you buy an Android — at least that’s what I have noticed.