Back in October, I posted a review of the Fitbit Ultra. It's a tiny fitness tracker that clips to a belt or sleeve and transmits your daily steps and calorie burn to a recharging and sync dock that's attached to your Mac or PC. In late October, Fitbit released their iPhone app so I followed up with information about how the app and tracker work together. At the time, I also promised to follow up on my original review to tell you how things are working with
