Gadget Ogling: Jump Starts, Wearable Drones, Smarter Yoga and Safer Food

Welcome, dear readers, to a new installment of Gadget Dreams and Nightmares, a fresh peek at gadgets hurtling down the pipeline toward our homes. On the docket this time around are a motivational wearable device, a smart yoga mat, a golfer-focused smartwatch, a drone with a difference, and a way to stop food from going bad. As always, these aren't reviews -- partly because some of these items are nowhere near market-ready yet -- and the ratings denote only my interest in actually using them.