The fitness tracker movement reminds me of that saying about the weather. Everybody talks about the weather, but nobody does anything about it. Pedometers and trackers are helpful, but they are observers. I discovered a cool gadget at CES that actually improves your health. The Valedo is a two-piece wearable that sticks to your chest and lower back using the 100 included disposable stickers. The two lightweight sensors work together to determine your posture and position, while you "play" a 3D interactive game.