Change the way people live their lives at $349 STARTING price? That's a good top of the line price, but starting price, entry level? Not on your rich life sir.
Nah, it's not going to change anything for me. It's not that much effort to pull my phone out of my pocket if I need to do "smart" tasks. I mean, this is at the end of the day, an accessory to the iPhone. It can't stand alone even. Not only that, if it requires bluetooth connectivity or anything like that, it will be an accessory that just depletes the battery faster. And I'm not even about to try typing on my wrist, or reading extensive work emails on it.
Nice novelty for people who have the definition of disposable/unwanted income, but this isn't the "iPod" of today. At best this is the iPod Hi-Fi of today.
Edit: And "Can't live without"? That's a bit strong. I mean, I love my iPhone 6 Plus. Thoroughly enjoy it, as well as my iPad Mini 3 and my MacBook Pro, and all my past Apple devices. But I could certainly live without it. And it's far more useful than the watch will be. Hyping something too much can actually be damaging too. It builds excitement in ignorant folks who will be let down when they realize it's not only something they could live without, but also something that adds little if anything to the Apple experience they already had.