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Digital Savant: Wearables may be hot, but they've got a ways to go

"Wearables" over the last year or two has become one of those terms in technology that's such a catch-all it sometimes feels like it doesn't mean much of anything.tmpplchld The simplest definition is technology that you wear on your body. That could mean a Fitbit activity tracker a jogger is wearing as they whoosh past you. If you've seen a commercial for the Apple Watch, you've seen a "wearable." But it's also coming to include everything from Bluetooth-enabled jewelry to hearing aids to clothing with sensors built into the fabric (get ready for sweat-detecting bike shorts!), shoes with pedometers built-in or even eyewear like the...