Earlier quoted context omitted.
Whether this will be useful all rests on the quality and differentiation of the haptic feedback. For example, imagine walking down the street towards your destination and feeling the right side of the watch vibrate to signal that you should turn right. If your watch can communicate contextual information related to your intention and local then it will be superior to (1) wearing a socially inappropriate device like t…
The overriding feeling I had during this keynote is that every feature that I found cool in the watch I would much prefer on my phone. Cool watch app? Wait, actually that would be cooler and more usable on a big screen... Haptic feedback? Agreed, awesome idea, but no reason it can't be on my phone and buzz my leg instead of my wrist.
It's clear that they spent a large amount of time and effort with the haptic feedback and the crown.
But functionality wise... well I completely agree with you.
I can't see anything a smartphone cannot do, better and more efficiently, with the exception of the heart rate sensor.
Some functions in particular seem very awkward to me: I cannot see a reasonable way of using it as a phone or an audio player, in public, without bluetooth earphones.
With mobile phones, mp3 players and smartphones the value proposition was clear, but what is the killer application for smartwatches ?
That said, I would be far from surprised if they sell like hotcakes.