Benedict Evans tweeted this chart of iPod sales. iPod was launched in 2001 but didn't really take off until end of 2004. I think the watch we see today will be very different in a few years. Look at the iPhone...when Steve announced it he called it a wide screen iPod + phone + internet communication device. And he talked up web apps. That is certainly not the iPhone of today. Maybe the Watch does too much and isn't focused enough (though I don't agree with Ben Thompson that it shouldn't have an SDK) right now, but I think it will over time. Apple is taking a different path than Google (extending notifications to your wrist) and that's OK. It would be pretty boring if everyone did the same thing. Let's wait a few years before we write of Watch.