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The shake up of the wearable device
Apple's year-old iPod Nano is being tatty as a watch. There are at least a half-dozen companies making watch straps specifically for it. The Nano is a feel-screen iPod, a radio, a Nike running monitor, a photo give form and, of course, a watch -- with 18 different fashion faces. Apple's already in the light of the next step.
The Up Band , a thin, colorful bracelet from Jambox, captures biometrics about your practise and sleep patterns and, when you plug it into your computer, sends that data to the Internet so you can see and cut your health data. The Fitbit , a pedometer updated for online, does the same separate of tracking, but attaches to your belt, not your wrist.

But these are just the early vanguard of wearable computers that will be much more strong and versatile. That shift will be fueled by four major trends: improved small-range communication protocols, flexible screens, and better battery soul and voice recognition.
Source: PBS MediaShift