Also, you're immediately setting up your product for a negative reception. People expect all the cool stuff and tight integration shown in the concept video. If you can't deliver that...
Huh, I thought the video was actually really depressing except for two features: taking a picture to send to my friends, and sharing a stream of what I'm looking in a video call. I guess I don't really see the value of putting apps in my eyes. But I do see a ton of value in sharing my eyes and having people share their eyes with me.
I see the value. For example, I like to monitor my heart rate and speed while running. To do that, I have to move my hand out of ideal running form and look at my watch. With a wearable display, I can continue looking straight ahead to check on my information. Same goes for maps while driving or walking around.
I think a wearable computer that seamless integrates with me will be like having a friend that's always around. If you've ever asked someone, "oh, do we turn left here", then you have a use for a computer that can answer the same question.
Yeah. I have a Garmin running watch that I can program to beep when my pulse is outside a range I set. But I really like to see the numbers. (It's easier when I'm cycling.)