Engadget - We first met Andrew Chang -- one of the co-founders behind LUMOback -- when he approached us at the end of our panel at SXSW and offered to show us his smart posture sensor. He was wearing it right then and demoed it for us on the spot. We were impressed enough to stay in touch. Fast forward four months and the device has launched on Kickstarter and already surpassed its $100,000 funding goal. We recently caught up with Andrew to learn a little more about the device's evolution from mockup to pre-production and to get some hands-on time.