He hit the nail on the head there.
As for functionality...I think less is more with a watch based computer.
If the watch had its own low speed mobile data connection (GPRS would be enough) and a Pushbullet style app as well as a clock...that'd be perfect.
Especially if it had a low power e-ink display with backlight toggle.
All I care about is being able to push my own notifications to it from my google calendar or a quick API call from a script to let me know the script has finished.
A simple GPS compass might be useful as well.
Am I right?
What I dont really need to know is my heart rate.
Effectively I need is a device that compliments but is not tied to my phone.
You listening Casio? Simple and low power is what you do...make this. Now!