Craig Hockenberry dismantles the “iWatch”:

You don’t need a computer on your wrist. Apple’s wearable devices will become a part of this circle that surrounds your main device. And as with CarPlay, it’s going to be a two-way street where interactions and information in the player make their way back to the main device.

I don’t know about his speculation, but his deconstruction of the watch concept and subsequent analysis is worth ten times the Wall Street estimates of the size of the “iWatch market”.