[jrockway]

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.

[FrojoS]

I just saw a jogger this sunday, who had an acoustical feedback of his pulse. Zurich, Switzerland. Might be an immediate solution to your problem.

[jrockway]

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.)