Lots of negativity in here. Most bikes with DuraAce components already aren't the sort of thing you'd leave out on a city street unattended.

One cool thing that stood out to me was that these monitors will transmit data over ANT+ or Bluetooth. As someone who already tracks all my workouts w/ a Garmin watch, I welcome the ability to track more metrics like power output. Gives you a good way to objectively track your progress over time when training for events and can help you gauge the impact of sleep, alcohol, etc on your performance.