Jawbone Up

Step one: Make the first fashionable Bluetooth headset. Step two: Make portable Bluetooth speakers more than just geeky add-ons. Step three: Use that experience to make the first lifestyle gadget people will actually want to wear. The Jawbone Up ($TBA) is a small, sensor-loaded wristband that you're expected to wear more or less all the time, so it can track your movements, sleep habits, and, via a companion app, nutrition, helping you fend off heart disease, diabetes, and other lifestyle-related issues just by having it on.