Jawbone's UP Wristband Tracks Activity, Movement and Sleep

Bluetooth headset manufacturer Jawbone has released the UP wristband
to track users activity, sleep, and food intake to "encourage healthier
living". The water-resistant wristband, which is designed to be worn
constantly, has a built-in motion sensor that tracks movement (steps,
distance, calories burned, pace, intensity level and active vs inactive
time) and sleep (hours slept, time to fall